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aqua_rat__xT9HQLnjW0RkedUx
If p and r are integers, and p^2 = 36r, then r must be divisible by which of the following? Answers: A) 2 B) 4 C) 9 D) 7 E) 14
Ans: D Solution: for p to be an int 36 r must be whole square of a number. 36r= 9*2*2*r to make it whole square we need 9 so r can must be divisible by 9y where y is itself a whole square. so 9 is the ans <result>C</result>
C
calc
ape210k__00335187
There are 234 pots of peonies in the park, which is three times that of chrysanthemums, and the number of pots of rose flowers is twice that of chrysanthemums. How many pots of roses are there in the park?
<gadget id="calculator">234 / 3</gadget> <output>78</output> <gadget id="calculator">78 * 2</gadget> <output>156</output> <result>156</result>
156
calc
ape210k__00325332
bus full of passengers departs from City A. When it passes Xinnong Station, (1/3) of the passengers get off and 5 passengers get on at the same time. At this time, the number of passengers on the bus is 75% of the original number. How many passengers were there in the car?
<gadget id="calculator">75 / 100</gadget> <output>3/4 = around 0.75</output> <gadget id="calculator">1 / 3</gadget> <output>1/3 = around 0.333333</output> <gadget id="calculator">1 - (1/3)</gadget> <output>2/3 = around 0.666667</output> <gadget id="calculator">(3/4) - (2/3)</gadget> <output>1/12 = around 0.083333</o...
60
calc
ape210k__00783051
A train travels 120 kilometers in one hour, departs from A at 1:10 pm, and arrives at B at 8:10 pm. What is the distance in kilometers between A and B?
<gadget id="calculator">120 * 7</gadget> <output>840</output> <result>840</result>
840
calc
math_qa__6jVU4hJLb3DJy20i
If the area of a circle decreases by 25%, then the radius of a circle decreases by Select A) 13 % B) 18 % C) 36 % D) 64 % E) none of these
<gadget id="calculator">100 - 25</gadget> <output>75</output> <gadget id="calculator">75 / 100</gadget> <output>3/4 = around 0.75</output> <gadget id="calculator">(3/4) ** (1/2)</gadget> <output>sqrt(3)/2 = around 0.866025</output> <gadget id="calculator">1 - (sqrt(3)/2)</gadget> <output>1 - sqrt(3)/2 = around 0.133...
A
calc
ape210k__00179421
A worm crawls from point A to point B. If its speed increases by 1 meter per minute, it can arrive 10 minutes earlier; if its speed increases by 2 meters, it can arrive 10 minutes earlier. What is the distance between A and B in meters?
<gadget id="calculator">3 * 40</gadget> <output>120</output> <result>120</result>
120
calc
math_qa__zyhed0kehGJL48Eh
The length of a rectangle is double its width. If the length is diminished by 5cm and the width is increased by 5cm then its area is increased by 75cm square. What is the length of the rectangle? Select: A) 20 B) 30 C) 40 D) 56 E) 65
<gadget id="calculator">5 * 5</gadget> <output>25</output> <gadget id="calculator">25 + 75</gadget> <output>100</output> <gadget id="calculator">100 / 5</gadget> <output>20</output> <gadget id="calculator">2 * 20</gadget> <output>40</output> <result>C</result>
C
calc
ape210k__00578643
If the ratio of the degrees of the three interior angles of a triangle is 4:3:2, what is the largest interior angle of the triangle?
<gadget id="calculator">2 + 3 + 4</gadget> <output>9</output> <gadget id="calculator">4 / 9</gadget> <output>4/9 = around 0.444444</output> <gadget id="calculator">180 * (4/9)</gadget> <output>80</output> <result>80</result>
80
calc
ape210k__00172575
In a division formula, the product of the divisor and the quotient is added to the dividend, and the result is 32.6. What is the dividend in this formula?
<gadget id="calculator">32.6 / 2</gadget> <output>16.3</output> <result>16.3</result>
16.3
calc
ape210k__00965899
Xiao Wang deposits 6,000 yuan in the bank for two years, with an annual interest rate of 3.75%. How much money can Xiao Wang get back when it expires?
<gadget id="calculator">3.75 / 100</gadget> <output>0.0375</output> <gadget id="calculator">6_000 * 0.0375 * 2</gadget> <output>450</output> <gadget id="calculator">6_000 + 450</gadget> <output>6_450</output> <result>6_450</result>
6_450
calc
ape210k__01020185
A rectangular test field with a length of 500 meters and a width of 300 meters can harvest 10 tons of wheat per hectare. How many tons of wheat can be harvested in total in this test field?
<gadget id="calculator">300 / 10_000</gadget> <output>3/100 = around 0.03</output> <gadget id="calculator">500 * (3/100) * 10</gadget> <output>150</output> <result>150</result>
150
calc
aqua_rat__aD07XIWjLBSqzocA
A box contains 1 red balls and 5 black balls. One by one, every ball is selected at random without replacement. What is the probability that the fourth ball selected is black? Choices: A) 1/4 B) 1/2 C) 1/2 D) 5/8 E) 2/3
My complicated version of your simple approach Let the 5 black balls be BBBBB and 1 Red Balls be R They can be arranged in 6 slots _ _ _ _ _ _ _ _ in (6!)/ (5!x1!) If the fourth slot is Black ball then the arrangement will be to fill _ _ _ B _ _ _ _ we have 5 slots and 4 Black (BBBB) and 1 Red (R) They ca...
C
calc
ape210k__00008712
((0.3+0.03+0.003+…)/(0.6+0.06+0.006+…)).
<gadget id="calculator">1 / 3</gadget> <output>1/3 = around 0.333333</output> <gadget id="calculator">2 / 3</gadget> <output>2/3 = around 0.666667</output> <gadget id="calculator">(1/3) / (2/3)</gadget> <output>1/2 = around 0.5</output> <result>1/2 = around 0.5</result>
1/2
calc
ape210k__00661795
The fruit shop shipped 12 baskets of oranges and 12 baskets of apples, weighing a total of 300 kg. Each basket of oranges weighs 10 kg, how much does each basket of apples weigh? (solution by equation)
<gadget id="calculator">10 * 12</gadget> <output>120</output> <gadget id="calculator">300 - 120</gadget> <output>180</output> <gadget id="calculator">180 / 12</gadget> <output>15</output> <result>15</result>
15
calc
aqua_rat__Iwrtig5ADemI0UAJ
How many seconds will a 600 m long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr? Pick one. A) 36 sec B) 30 sec C) 13 sec D) 19 sec E) 12 sec
Speed of train relative to man = 63 - 3= <gadget id="calculator">63 - 3</gadget> <output>60</output> 60 km/hr.= 60 * 5/18 = 50/3 m/sec. Time taken to pass the man = 600 * 3/50= <gadget id="calculator">600 * 3/50</gadget> <output>36</output> 36 sec. 36 secnswer:36 sec <result>A</result>
A
calc
ape210k__00055439
A, B, and C go to buy books. B buys 3 more books than A (3/7), and C buys 1 less than A (2/5). So, how many books did the three of them buy together at least?
<gadget id="calculator">3 / 7</gadget> <output>3/7 = around 0.428571</output> <gadget id="calculator">35 * (3/7)</gadget> <output>15</output> <gadget id="calculator">2 / 5</gadget> <output>2/5 = around 0.4</output> <gadget id="calculator">35 * (2/5)</gadget> <output>14</output> <gadget id="calculator">14 - 1</gadge...
66
calc
aqua_rat__elz0PogycC0JEz4T
How many positive integers will divide evenly into 420? Choose one A) 8 B) 12 C) 16 D) 18 E) 20
520 = 10*13*4 = 8*5*13 = 2^3*5*13 We need to positive integers will divide evenly into 520 or simply the factors of 520 If a number is of the form 2^a*3^b*5^c, Total factors = (a+1)(b+1)(c+1) Therefore, number of factors of 520 = (3+1)*(1+1)*(1+1) = 4*2*2 = 12 Option C12 <result>B</result>
B
calc
aqua_rat__HiPWK1PwAdDXtrPO
There are two decks of 10 cards each. The cards in each deck are labeled with integers from 10 to 20 inclusive. If we pick a card from each deck at random, what is the probability that the product of the numbers on the picked cards is a multiple of 6? Choose the correct choice from the following answers A) 0.23 B) 0.36...
If 6 is a multiple, we need 2 and 3 as a factor of the number. If we factor the numbers 11 through 20 we have: 11 = 11 12 = 2*2*3 13 = 13 14 = 7*2 15 = 5*3 16 = 2*2*2 17 = 17 18 = 3*2*3 19 = 19 20 = 5*2*2 0.4ombos that have a 2 and a 3 as factors (first + second card): 12 + anything - 19 of thes...
C
calc
ape210k__00382926
Xiaodong bought two shuttlecocks, 80 cents and 5 cents each, leaving 7 cents and 2 cents. How much money does Xiaodong have in total?
<gadget id="calculator">0.85 * 2</gadget> <output>1.7</output> <gadget id="calculator">1.7 + 0.72</gadget> <output>2.42</output> <result>2.42</result>
2.42
calc
ape210k__00557507
When two numbers are divided, the quotient is 35 and the remainder is 38. If the sum of the dividend, divisor, quotient and remainder is 2163, what is the dividend?
<gadget id="calculator">2_163 - 38 - 35 - 38</gadget> <output>2_052</output> <gadget id="calculator">35 + 1</gadget> <output>36</output> <gadget id="calculator">2_052 / 36</gadget> <output>57</output> <gadget id="calculator">35 * 57</gadget> <output>1_995</output> <gadget id="calculator">1_995 + 38</gadget> <output...
2_033
calc
ape210k__00006097
It is known that the distance between two stations A and B is 470 kilometers. One train departs from Station A at 1:00 noon and travels 52 kilometers per hour. The other train departs from Station B at 2:30 p.m. meet. Question: What is the speed of the train leaving from station B in kilometers per hour?
<gadget id="calculator">6 - 1</gadget> <output>5</output> <gadget id="calculator">52 * 5</gadget> <output>260</output> <gadget id="calculator">470 - 260</gadget> <output>210</output> <gadget id="calculator">18 - 14.5</gadget> <output>3.5</output> <gadget id="calculator">210 / 3.5</gadget> <output>60</output> <resu...
60
calc
ape210k__01007465
(1/7)*36%+36%*(6/7); 24%*((1/4)+(1/3))
<gadget id="calculator">24 / 100</gadget> <output>6/25 = around 0.24</output> <gadget id="calculator">1 / 4</gadget> <output>1/4 = around 0.25</output> <gadget id="calculator">1 / 3</gadget> <output>1/3 = around 0.333333</output> <gadget id="calculator">(1/4) + (1/3)</gadget> <output>7/12 = around 0.583333</output> ...
7/50
calc
aqua_rat__2vCEGFEjeRhkSJxr
The radius of a wheel is 22.4 cm. What is the distance covered by the wheel in making 500 resolutions? Choose the correct choice from the following options: A) 754 m B) 704 m C) 708 m D) 706 m E) 204 m
In one resolution, the distance covered by the wheel is its own circumference. Distance covered in 500 resolutions. = 500 * 2 * 22/7 * 22.4= <gadget id="calculator">500 * 2 * 22/7 * 22.4</gadget> <output>70_400</output> 70400 cm= 704 m Answer:704 m <result>B</result>
B
calc
aqua_rat__5no5TnBKIhC80vyV
GOOD is coded as 164 then BAD coded as 21.if ugly coded as 260 then ADD? Choices: A) 20 B) 30 C) 29 D) 27 E) 28
GOOD=(7+15+15+4)*4= <gadget id="calculator">(7+15+15+4)*4</gadget> <output>164</output> 164 BAD= (2+1+4)*3= <gadget id="calculator">(2+1+4)*3</gadget> <output>21</output> 21 UGLY= (21+7+12+25)*4= <gadget id="calculator">(21+7+12+25)*4</gadget> <output>260</output> 260 coding follows (sum of position of alpha...
D
calc
ape210k__00392416
There are 98 pages in a story book, and you read x pages every day on average. After reading it for 6 days, how many pages are left?
<gadget id="calculator">98 - 6</gadget> <output>92</output> <result>92</result>
92
calc
aqua_rat__7ZfOZywITXPmjSsR
A full stationary oil tank that is a right circular cylinder has a radius of 100 feet and a height of 25 feet. Oil is pumped from the stationary tank to an oil truck that has a tank that is a right circular cylinder until the truck's tank is completely filled. If the truck's tank has a radius of 4 feet and a height of ...
The volume of oil pumped to the tank = The volume of oil taken away from stationary cylinder. pi*16*10 = pi*h*100*100 (h is distance that the oil level dropped) h = 160/10,000 = 16/1000= <gadget id="calculator">16/1000</gadget> <output>2/125 = around 0.016</output> 0.016 ft The answer is 0.016. <result>E</result...
E
calc
aqua_rat__ofGL8yV3zEwDhglf
8 men can do a piece of work in 12 days. 4 women can do it in 48 days and 10 children can do it in 24 days. In how many days can 10 men, 4 women and 30 children together complete the piece of work? Select A) 5 days B) 15 days C) 28 days D) 4 days E) 7 days
Explanation: 1 man’s 1 day’s work = 1/8 × 12 = 1/96 10 men’s 1 day’s work = 1 × 10/96 = 5/48 1 woman’s 1 day’s work = 1/192 4 women’s 1 day’s work = 1/192 × 4 = 1/48 1 child’s 1 day’s work = 1/240 30 children’s 1 day’s work = 1/8 Therefore, (10 men + 4 women + 30 children)’s 1 day’s work = 5/48 + 1/48 + 1...
D
calc
ape210k__00472961
The two right-angled sides of a right-angled triangle are 15cm and 20cm, respectively, and the 15cm-long right-angled side is rotated once as the axis. What is the volume of the obtained figure in cubic centimeters?
<gadget id="calculator">1 / 3</gadget> <output>1/3 = around 0.333333</output> <gadget id="calculator">20 ** 2</gadget> <output>400</output> <gadget id="calculator">(1/3) * 3.14 * 400 * 15</gadget> <output>6_280</output> <result>6_280</result>
6_280
calc
ape210k__00374769
If the ratio of male to female students is 5:6, the number of female students is less than that of the whole class ((())/(())).
<gadget id="calculator">5 + 6</gadget> <output>11</output> <gadget id="calculator">5 / 11</gadget> <output>5/11 = around 0.454545</output> <result>5/11 = around 0.454545</result>
5/11
calc
math_qa__H32Yn6ITOrigR4mc
The cricket team of 11members is 26yrs old & the wicket keeper is 3 yrs older. If the ages ofthese 2are excluded, the average age of theremaining players is 1 year less than the average age of the whole team. What is the average age of the team ? Choose the correct choice from the following answers: A) 18 B) 21 C) 23 D...
<gadget id="calculator">26 + 3</gadget> <output>29</output> <gadget id="calculator">29 + 26</gadget> <output>55</output> <gadget id="calculator">11 - 2</gadget> <output>9</output> <gadget id="calculator">55 - 9</gadget> <output>46</output> <gadget id="calculator">11 - 9</gadget> <output>2</output> <gadget id="calc...
C
calc
ape210k__00235671
If Xiao Ming walks 50 meters per minute from home to school, he will be 6 minutes late, and if he walks 80 meters per minute, he will be 3 minutes early. How many meters does Xiao Ming have to walk from home to school?
<gadget id="calculator">300 + 480</gadget> <output>780</output> <gadget id="calculator">780 / 30</gadget> <output>26</output> <gadget id="calculator">26 + 6</gadget> <output>32</output> <gadget id="calculator">50 * 32</gadget> <output>1_600</output> <result>1_600</result>
1_600
calc
ape210k__00182970
The Xishuangbanna Circus performed in "Happy Valley", and the elephants lined up to enter the arena. The elephant's feet were more than the sum of their nose and tail. How many elephants are there in total?
<gadget id="calculator">4 - 1 - 1</gadget> <output>2</output> <gadget id="calculator">10 / 2</gadget> <output>5</output> <result>5</result>
5
calc
ape210k__00231317
There are 180 grams of salt water with a concentration of 2% in container A, and several grams of salt water with a concentration of 9% in container B. Take 240 grams of salt water from B and pour it into A. At this time, the amount of salt in both containers A and B equal. How many grams of the original salt water in ...
<gadget id="calculator">2 / 100</gadget> <output>1/50 = around 0.02</output> <gadget id="calculator">180 * (1/50)</gadget> <output>18/5 = around 3.6</output> <gadget id="calculator">9 / 100</gadget> <output>9/100 = around 0.09</output> <gadget id="calculator">240 * (9/100)</gadget> <output>108/5 = around 21.6</outpu...
520
calc
ape210k__00223632
Xiao Ming planted colorful flags around the playground. At the beginning, he inserted one every 4 meters. After 11, he found that the colorful flags were not enough, so he decided to reinsert them and changed to one every 5 meters. When replugging, how many colored flags do not need to be unplugged and replugged?
<gadget id="calculator">11 - 1</gadget> <output>10</output> <gadget id="calculator">10 / 20</gadget> <output>1/2 = around 0.5</output> <gadget id="calculator">4 * (1/2)</gadget> <output>2</output> <gadget id="calculator">2 + 1</gadget> <output>3</output> <result>3</result>
3
calc
aqua_rat__Kv4mSlWMlvfTUQfZ
9. On level farmland, two runners leave at the same time from the intersection of two country roads. One runner jogs due north at a constant rate of 8 miles per hour while the second runner jogs due east at a constant rate that is 8 miles per hour faster than the first runner's rate. How far apart, to the nearest mile,...
If runner 1 is going north and runner 2 is going east they are like two sides of a 90 degree triangle. Side 1 = 8 m/h --&gt; 4 m in 1/2 hr Side 2 = 16 m/h --&gt; 8 m in 1/2 hr to complete this right angle triangle d^2 = 4^2 + 8^2 d^2 = 80 = ~ 9 Answer option 9 <result>E</result>
E
calc
aqua_rat__QOlDonTQ4CvyuPcD
The average of first 10 prime numbers is? Options. A) 10.11 B) 12.9 C) 12.11 D) 13.11 E) 14.11
Sum of 10 prime no. = 129 Average = 129/10= <gadget id="calculator">129/10</gadget> <output>129/10 = around 12.9</output> 12.9 Answer : 12.9 <result>B</result>
B
calc
ape210k__00176137
The garment factory tried to make a batch of garments. It has been done for 5 days, with an average of 75 sets per day. The rest needs to be completed in 3 days, with an average of 95 sets per day. In this way, how many sets are produced on average per day for this batch of garments?
<gadget id="calculator">75 * 5</gadget> <output>375</output> <gadget id="calculator">95 * 3</gadget> <output>285</output> <gadget id="calculator">375 + 285</gadget> <output>660</output> <gadget id="calculator">5 + 3</gadget> <output>8</output> <gadget id="calculator">660 / 8</gadget> <output>165/2 = around 82.5</ou...
165/2
calc
ape210k__01127331
Calculation: (2/(1*7))+(2/(7*13))+(2/(13*19))+…+(2/(145*151)).
<gadget id="calculator">1 / 3</gadget> <output>1/3 = around 0.333333</output> <gadget id="calculator">1 / 151</gadget> <output>1/151 = around 0.006623</output> <gadget id="calculator">1 - (1/151)</gadget> <output>150/151 = around 0.993377</output> <gadget id="calculator">(1/3) * (150/151)</gadget> <output>50/151 = a...
50/151
calc
math_qa__vnZt1iOf98iw6CYs
If 15% of 30% of 50% of a number is 126, then what is the number? Options: A) 5000 B) 5600 C) 5400 D) 4500 E) none of these
<gadget id="calculator">50 / 100</gadget> <output>1/2 = around 0.5</output> <gadget id="calculator">30 / 100</gadget> <output>3/10 = around 0.3</output> <gadget id="calculator">(1/2) * (3/10)</gadget> <output>3/20 = around 0.15</output> <gadget id="calculator">15 / 100</gadget> <output>3/20 = around 0.15</output> <...
B
calc
ape210k__00069115
In our school's sunshine sports interest activities, there are 148 people participating in the basketball team, and the number of table tennis teams is 3 less than that of the basketball team (1/4). How many people are there in the table tennis team?
<gadget id="calculator">1 / 4</gadget> <output>1/4 = around 0.25</output> <gadget id="calculator">148 * (1/4)</gadget> <output>37</output> <gadget id="calculator">37 - 3</gadget> <output>34</output> <result>34</result>
34
calc
aqua_rat__8R42bML6oAqdh6Zu
A man buys an song for 10% less than its value and sells it for 10% more than its value. His gain or loss percent is: Pick one A) <25 B) <10 C) >20 D) >30 E) <30
C &gt;20 Let the song be worth $x. C.P. 90% of $x = $9x/10 S.P. = 110% of $x = $11x/10 Gain = (11x/10 - 9x/10) = $x/5 Gain % = x/5 * 10/9x * 100 = 22 2/9 % &gt; 20% <result>C</result>
C
calc
ape210k__00244889
The average of the three numbers is 60, and their ratio is 1:4:5, how much more the largest number is than the smallest number.
<gadget id="calculator">60 * 3</gadget> <output>180</output> <gadget id="calculator">1 + 4 + 5</gadget> <output>10</output> <gadget id="calculator">5 / 10</gadget> <output>1/2 = around 0.5</output> <gadget id="calculator">180 * (1/2)</gadget> <output>90</output> <gadget id="calculator">1 / 10</gadget> <output>1/10 ...
72
calc
ape210k__00330719
In a formula, both the minuend and the subtrahend are 386, what is the difference?
<gadget id="calculator">386 - 386</gadget> <output>0</output> <result>0</result>
0
calc
ape210k__00648815
There are 378 boys and 231 girls in the first grade of elementary school, and 225 of them wear red scarves. How many people don't wear red scarves?
<gadget id="calculator">231 - 225</gadget> <output>6</output> <gadget id="calculator">378 + 6</gadget> <output>384</output> <result>384</result>
384
calc
aqua_rat__j5Pd4A6xjF9TxybS
In wardrobe Marry has 3trousers. One of them is grey the 2nd blue and the 3rd brown. In his wardrobe he also has 4shirts. One of them is grey and the other 3are white. He openshiswardrobe in the dark and pick out one shirt trouser pair without examination the color. What is the likelihood that neither the shirt nor the...
Probability that trouser is not grey = 2/3 Probability that shirt is not grey = 3/4 ∴ Required probability = 2/3 x 3/4 = 1/2 1/2 <result>A</result>
A
calc
aqua_rat__8Ah3mNwNeeF6ukAe
In a factory, there are 30% technicians and 70% non-technicians. If the 30% of the technicians and 70% of non-technicians are permanent employees, then the percentage of workers who are temporary is? Choose the correct choice: A) 62% B) 57% C) 52% D) 22% E) 48%
Total = 100 T= 30 NT= 70 30*(70/100)= <gadget id="calculator">30*(70/100)</gadget> <output>21</output> 21 70*(30/100)=21 21 + 21= <gadget id="calculator">21 + 21</gadget> <output>42</output> 42=&gt; 100 - 42= <gadget id="calculator">100 - 42</gadget> <output>58</output> 58% Answer:48% <result>E</result>
E
calc
aqua_rat__uoHsQzAe6Fa7WA96
In the accounting branch of a commercial institute, the percentage of male and female workers is 48% and 52% respectively. In this branch, 40% of males and 20% of females are age 25 or older. If one of the workers is selected at random, what is the probability Q that the worker is under 25 years old? Choose the correct...
Percentage of male worker = 48 Percentage of female worker = 52 Let total number of workers = 1000 number of male workers= 480 number of female workers = 520 Number of male age 25 or older = (4/10)*480= <gadget id="calculator">(4/10)*480</gadget> <output>192</output> 192 Number of female age 25 or older=(2...
D
calc
ape210k__00063458
Xiao Ming practiced 100 characters in the morning and 140 in the afternoon. The number of characters practiced today is equivalent to (2/3) yesterday. How many characters did Xiao Ming practice yesterday?
<gadget id="calculator">100 + 140</gadget> <output>240</output> <gadget id="calculator">2 / 3</gadget> <output>2/3 = around 0.666667</output> <gadget id="calculator">240 / (2/3)</gadget> <output>360</output> <result>360</result>
360
calc
ape210k__00710761
A circular flower bed has a diameter of 4 meters, and a 0.5-meter gravel road is paved around it. What is the area of the gravel road in square meters?
<gadget id="calculator">4 / 2</gadget> <output>2</output> <gadget id="calculator">2 + 0.5</gadget> <output>2.5</output> <gadget id="calculator">2.5 ** 2</gadget> <output>6.25</output> <gadget id="calculator">2 ** 2</gadget> <output>4</output> <gadget id="calculator">6.25 - 4</gadget> <output>2.25</output> <gadget ...
7.065
calc
math_qa__F6G479bHxVspLdKn
A cylinder of height h is 2/3 of water. When all of the water is poured into an empty cylinder whose radius is 25 percent larger than that of the original cylinder, the new cylinder is 3/5 full. The height of the new cylinder is what percent of h? Choose one: A) 25 % B) 50 % C) 60 % D) 80 % E) 90 %
<gadget id="calculator">3 / 5</gadget> <output>3/5 = around 0.6</output> <gadget id="calculator">2 / 3</gadget> <output>2/3 = around 0.666667</output> <gadget id="calculator">(3/5) / (2/3)</gadget> <output>9/10 = around 0.9</output> <gadget id="calculator">(9/10) * 100</gadget> <output>90</output> <result>E</result...
E
calc
ape210k__00594651
Solve the equation: (15/(x))-(30/(1+(1/3)))=5.
<gadget id="calculator">1 / 3</gadget> <output>1/3 = around 0.333333</output> <gadget id="calculator">15 * (1/3)</gadget> <output>5</output> <gadget id="calculator">15 + 5</gadget> <output>20</output> <gadget id="calculator">55 / 2</gadget> <output>55/2 = around 27.5</output> <gadget id="calculator">45 / 2</gadget>...
6/11
calc
aqua_rat__8p7jK3YI3vI5cfFY
Maxwell leaves his home and walks toward Brad's house at the same time that Brad leaves his home and runs toward Maxwell's house. If the distance between their homes is 80 kilometers, Maxwell's walking speed is 4 km/h, and Brad's running speed is 6 km/h, what is the distance traveled by Brad? Select A) 16 B) 48 C) 20...
Time taken = Total Distance / Relative Speed Total Distance = 80 kms Relative Speed (Opposite side) (As they are moving towards each other speed would be added ) = 6+ 4= <gadget id="calculator">6+ 4</gadget> <output>10</output> 10 kms/hr Time taken= 80 / 10= <gadget id="calculator">80 / 10</gadget> <output>8</o...
B
calc
ape210k__00565789
Xiaojie deposits 1,000 yuan in the bank. The monthly interest rate is 0.1875%. After one year of deposit, he will pay 20% interest tax. How much interest will Xiaojie get after the maturity date?
<gadget id="calculator">20 / 100</gadget> <output>1/5 = around 0.2</output> <gadget id="calculator">1 - (1/5)</gadget> <output>4/5 = around 0.8</output> <gadget id="calculator">2.25 * (4/5)</gadget> <output>1.8</output> <gadget id="calculator">2.25 - 1.8</gadget> <output>0.45</output> <result>0.45</result>
0.45
calc
ape210k__01001139
Xiaoxiao Chewing Gum Factory produces 2,400 pieces of chewing gum a day, every 5 pieces are packed in a pack, and every 6 packs is packed in a bag. How many bags of these chewing gums can be filled in total? (Requirement: use two methods to calculate, and say what is calculated first by each method, and then what is ca...
<gadget id="calculator">2_400 / 5 / 6</gadget> <output>80</output> <result>80</result>
80
calc
aqua_rat__s2fGOVLYdxyXQGIi
A train 125 m long passes a man, running at 1 km/hr in the same direction in which the train is going, in 10 sec. The speed of the train is? Answers A) 65 km/hr B) 17 km/hr C) 76 km/hr D) 50 km/hr E) 46 km/hr
Speed of the train relative to man = 125/10 = 25/2 m/sec. = 25/2 * 18/5= <gadget id="calculator">25/2 * 18/5</gadget> <output>45</output> 45 km/hr Let the speed of the train be x km/hr. Then, relative speed= (x - 1) km/hr. x - 1 = 45 =&gt; x = 46 km/hr. Answer: 46 km/hr <result>E</result>
E
calc
aqua_rat__mWbfOlGxHiyDn6Fg
A milkman sells his milk at CP but he mixes it with water and thereby gains 25%. What is the % of water in the mixture? Choose the correct choice from the following options. A) 10% B) 12% C) 20% D) 25% E) 30%
Here Gain= 25% error = quantity of water he mixes in the milk =x true value = true quantity of milk = T So the formula becomes, 25=x(T−x)×100 ⇒1=x(T−x)×4⇒T−x=4x⇒T=5x Percentage of water in the mixture =xT×100=x5x×100=15×100=20% 20% <result>C</result>
C
calc
aqua_rat__Sa8LQlLk6dxtOWlQ
The average price of three items of furniture is Rs. 15000. If their prices are in the ratio 3:5:7, the price of the cheapest item is : Choose the correct choice from the following choices A) 2348 B) 3888 C) 3988 D) 9000 E) 2882
Explanation: Let their prices be 3x, 5x and 7x. Then, 3x + 5x + 7x = (15000 * 3) or x = 3000. Cost of cheapest item = 3x = Rs. 9000. Answer: 9000) 9000 <result>D</result>
D
calc
ape210k__01095157
The school bought back a batch of books and distributed them to 18 classes. After an average of 47 books per class, there was only one book left. How many books are there in total?
<gadget id="calculator">47 * 18</gadget> <output>846</output> <gadget id="calculator">846 + 1</gadget> <output>847</output> <result>847</result>
847
calc
ape210k__00166333
The school arranges students to listen to the report in the conference room. If every 3 people sit on a bench, then there are 48 people left unoccupied; if every 5 people sit on a bench, then exactly two benches will be vacant. How many students listen to the report?
<gadget id="calculator">5 * 2</gadget> <output>10</output> <gadget id="calculator">48 + 10</gadget> <output>58</output> <gadget id="calculator">5 - 3</gadget> <output>2</output> <gadget id="calculator">58 / 2</gadget> <output>29</output> <gadget id="calculator">29 * 3</gadget> <output>87</output> <gadget id="calcu...
135
calc
math_qa__GWSaV2q2gQBF1SDa
How many bricks, each measuring 125 cm x 11.25 cm x 6 cm, will be needed to build a wall of 8 m x 6 m x 22.5 cm? Choose the correct choice from the following: A) 1280 B) 2400 C) 5500 D) 7400 E) 3400
<gadget id="calculator">8 * 100</gadget> <output>800</output> <gadget id="calculator">6 * 100</gadget> <output>600</output> <gadget id="calculator">800 * 600</gadget> <output>480_000</output> <gadget id="calculator">480_000 * 22.5</gadget> <output>10_800_000</output> <gadget id="calculator">125 * 11.25</gadget> <ou...
A
calc
aqua_rat__HplPUIpV7GRs68no
Sides of a rectangular park are in the ratio 3: 2 and its area is 2460sq m, the cost of fencing it at 50 ps per meter is? Options: A) s.122 B) s.129 C) s.129.76 D) s.120 E) s.121
3x * 2x = 2460 =&gt; x = 20.24 2(79.76 + 50) = 259.52 m 259.52 * 1/2 = Rs.129.76 Answer:s.129.76 <result>C</result>
C
calc
ape210k__00248970
Guangming Primary School bought 86 books in May, 10 more than twice the amount in April. How many books did you buy in April? (solution by equation)
<gadget id="calculator">86 - 10</gadget> <output>76</output> <gadget id="calculator">76 / 2</gadget> <output>38</output> <result>38</result>
38
calc
aqua_rat__YYFPQwcjx8STDXh9
10 t-shirts are available to choose. 5 of them are printed, and 5 of them are plain t-shirts. If 3 t-shirts are to be selected at random from the 10, what is the probability that at least one of them is a printed t-shirt. Options. A) 1/12 B) 7/12 C) 5/12 D) 11/12 E) 13/12
You have 10 t-shirts. You need to choose 3 of them. You can do this in 10C3 = 10*9*8/3*2*1 = 120 ways. You have 5 plain t-shirts. You can choose 3 out of them in 5C3 = 5*4/2= <gadget id="calculator">5*4/2</gadget> <output>10</output> 10 ways. So you have total 120 ways of picking 3 t-shirts out of 10. In 10 of tho...
D
calc
math_qa__F7AkLMLfsfBdPXj3
Find the area, diameter = 9 m. Pick one: A) 63.00 square meter B) 63.64 square meter C) 63.08 square meter D) 63.24 square meter E) 63.43 square meter
<gadget id="calculator">9 / 2</gadget> <output>9/2 = around 4.5</output> <gadget id="calculator">pi * ((9/2) ** 2)</gadget> <output>81*pi/4 = around 63.617251</output> <result>B</result>
B
calc
ape210k__00309542
Add 10 to the numerator of (5/9), how much should be added to the denominator to keep the fraction constant.
<gadget id="calculator">10 + 5</gadget> <output>15</output> <gadget id="calculator">15 / 5</gadget> <output>3</output> <gadget id="calculator">9 * 3</gadget> <output>27</output> <gadget id="calculator">27 - 9</gadget> <output>18</output> <result>18</result>
18
calc
aqua_rat__kcthaK3ckvbwBsF3
Joe has a bunch of change in his pocket? Which of the following choices is the correct amount of change? Choose the correct choice from the following answers. A) 75 cents B) 85 cents C) 29 cents D) 39 cents E) 51 cents
29 is the only prime number, so answer 29 cents is the correct answer. <result>C</result>
C
calc
aqua_rat__xJeQCUUSylRTzURv
A dog takes 3 leaps for every 7 leaps of a hare. If one leap of the dog is equal to 3 leaps of the hare, the ratio of the speed of the dog to that of the hare is : Options. A) 9:7 B) 9:9 C) 9:6 D) 9:1 E) 9:2
Explanation: Dog : Hare = (3*3) leaps of hare : 7 leaps of hare = 9 : 7. 9:7nswer: 9:7) 9:7 <result>A</result>
A
calc
ape210k__00519208
The meteorological team measured the temperature at 12 noon every day of the week: 28°C, 32°C, 31°C, 31°C, 29°C, 28°C, 31°C. What is the average temperature in this week?
<gadget id="calculator">28 + 32 + 31 + 31 + 29 + 28 + 31</gadget> <output>210</output> <gadget id="calculator">210 / 7</gadget> <output>30</output> <result>30</result>
30
calc
ape210k__00282491
Three natural numbers a, b, c, known a*b=30, b*c=35, a*c=42, what is a*b*c?
<gadget id="calculator">30 / 5</gadget> <output>6</output> <gadget id="calculator">35 / 5</gadget> <output>7</output> <gadget id="calculator">6 * 5 * 7</gadget> <output>210</output> <result>210</result>
210
calc
aqua_rat__CTWNqqhNzpkTWCk0
Mother is aged 3times more than her daughter Rose. After 8 years, she would be two and a 1/2times of Rose's age. After further 8 years, how many times would he be of Rose's age? Choose the correct choice. A) 1 B) 2 C) 3 D) 5 E) 6
Let Ronit's present age be x years. Then, father's present age =(x + 3x) years = 4x years. (4x + 8) = 5 (x + 8) 2 8x + 16 = 5x + 40 3x = 24 x = 8. Hence, required ratio = (4x + 16)/(x + 16) = 48/24= <gadget id="calculator">48/24</gadget> <output>2</output> 2. 2 <result>B</result>
B
calc
gsm8k__fvt1qZFlznjUVFER
A group of bedbugs infested an old mattress. Every day, the number of bedbugs would triple. After four days, there were 810 bedbugs burrowing into the mattress. How many bedbugs did the group start with?
On the third day, there were one-third of the number of bedbugs as the fourth day, so there were 810 / 3 = <gadget id="calculator">810/3</gadget> <output>270</output> 270 bedbugs. On the second day, there were one-third of the third day's bedbugs, so there were 270 / 3 = <gadget id="calculator">270/3</gadget> <output...
30
calc
math_qa__BkYFgBwLVlUZL2Ir
A contractor undertakes to built a walls in 50 days. He employs 70 peoples for the same. However after 25 days he finds that only 40% of the work is complete. How many more man need to be employed to complete the work in time? Answers: A) 105 B) 30 C) 35 D) 20 E) none of these
<gadget id="calculator">100 - 40</gadget> <output>60</output> <gadget id="calculator">60 / 100</gadget> <output>3/5 = around 0.6</output> <gadget id="calculator">70 * (3/5)</gadget> <output>42</output> <gadget id="calculator">4 / 10</gadget> <output>2/5 = around 0.4</output> <gadget id="calculator">42 / (2/5)</gadg...
A
calc
ape210k__00409839
If △+○=10, what is the result of 73*△+73*○
<gadget id="calculator">73 * 10</gadget> <output>730</output> <result>730</result>
730
calc
ape210k__00220592
There are 54 cards in a deck, and there are 2 kings among them, then at least how many cards are drawn from it to ensure that there are 5 cards of the same suit for any drawing method.
<gadget id="calculator">3 * 4</gadget> <output>12</output> <gadget id="calculator">2 + 4 + 12 + 1</gadget> <output>19</output> <result>19</result>
19
calc
ape210k__01146461
There are 240 students in the sixth grade of Zhongtian Primary School. Among them (3/4) students will participate in the school sports meeting, and the rest will be the cheerleading team. Ask how many people in the sixth grade of Zhongtian Primary School participate in the cheerleading team?
<gadget id="calculator">3 / 4</gadget> <output>3/4 = around 0.75</output> <gadget id="calculator">1 - (3/4)</gadget> <output>1/4 = around 0.25</output> <gadget id="calculator">240 * (1/4)</gadget> <output>60</output> <result>60</result>
60
calc
ape210k__00449836
The small runway in Puyang Town is a rectangle with a circumference of 300 meters. The ratio of length to width is 3:2. What is the area?
<gadget id="calculator">300 / 2</gadget> <output>150</output> <gadget id="calculator">3 + 2</gadget> <output>5</output> <gadget id="calculator">3 / 5</gadget> <output>3/5 = around 0.6</output> <gadget id="calculator">150 * (3/5)</gadget> <output>90</output> <gadget id="calculator">2 / 5</gadget> <output>2/5 = aroun...
5_400
calc
gsm8k__kCjHdNmtCHSMpqc9
Oli's banana split has 4 scoops of ice cream while Victoria has twice more scoops of ice cream than Oli's. How many more scoops of ice cream does Victoria have than Oli?
Victoria has 4 x 2 = <gadget id="calculator">4*2</gadget> <output>8</output> 8 scoops of ice cream. Therefore, Victoria has 8 - 4 = <gadget id="calculator">8-4</gadget> <output>4</output> 4 more scoops of ice cream than Oli. <result>4</result>
4
calc
ape210k__00016854
Add 4 to the numerator of (2/3), how much should be added to the denominator to keep the size of the fraction constant
<gadget id="calculator">3 * 3</gadget> <output>9</output> <gadget id="calculator">9 - 3</gadget> <output>6</output> <result>6</result>
6
calc
ape210k__00413868
A square billet with a side length of 6 cm is forged into a rectangular steel plate with a length of 12 cm and a width of 6 cm. How thick is this steel plate?
<gadget id="calculator">12 * 6</gadget> <output>72</output> <gadget id="calculator">6 / 72</gadget> <output>1/12 = around 0.083333</output> <gadget id="calculator">6 * 6 * (1/12)</gadget> <output>3</output> <result>3</result>
3
calc
ape210k__00558211
Solution: (1/20)-(1/10)x=x: (1/5).
<gadget id="calculator">1 / 20</gadget> <output>1/20 = around 0.05</output> <gadget id="calculator">1 / 5</gadget> <output>1/5 = around 0.2</output> <gadget id="calculator">(1/20) * (1/5)</gadget> <output>1/100 = around 0.01</output> <gadget id="calculator">1 / 10</gadget> <output>1/10 = around 0.1</output> <gadget...
1/102
calc
ape210k__00278253
In a triangle ABC, it is known that the lengths of the three sides are all integers in centimeters, and the lengths of the two sides are 5 cm and 8 cm respectively, and the length of the third side is at most how many centimeters.
<gadget id="calculator">8 + 5</gadget> <output>13</output> <gadget id="calculator">13 - 1</gadget> <output>12</output> <result>12</result>
12
calc
ape210k__00482298
This year's output is 8% higher than last year's. What is this year's output compared to last year's output?
<gadget id="calculator">8 / 100</gadget> <output>2/25 = around 0.08</output> <gadget id="calculator">1 + (2/25)</gadget> <output>27/25 = around 1.08</output> <result>27/25 = around 1.08</result>
27/25
calc
ape210k__00481881
From 8:00 to 12:00, I sprayed a total of 840 apple trees. How many trees are sprayed per hour on average?
<gadget id="calculator">840 / 8</gadget> <output>105</output> <result>105</result>
105
calc
math_qa__pL2Q9CPOdIPJLsQm
The banker's gain on a sum due 6 years hence at 12% per annum is Rs. 756. What is the banker's discount? Choose one. A) 1240 B) 1120 C) 1190 D) 1806 E) none of these
<gadget id="calculator">756 * 100</gadget> <output>75_600</output> <gadget id="calculator">12 * 6</gadget> <output>72</output> <gadget id="calculator">75_600 / 72</gadget> <output>1_050</output> <gadget id="calculator">756 + 1_050</gadget> <output>1_806</output> <result>D</result>
D
calc
gsm8k__G5Z1Yh9qsziBm5PJ
Jill is going to resod her front yard. The plot of land in front of her house is 200 feet wide by 50 feet. Her house has a sidewalk that is 3 feet wide and 50 feet long. There are also four flower beds: two right in front of the house that are 4 feet deep by 25 feet long, one that is 10 feet by 12 feet, and a fourth th...
The area of the whole front yard is 200 feet by 50 feet, or 200 ft * 50 ft = <gadget id="calculator">200*50</gadget> <output>10_000</output> 10,000 sq.ft. The sidewalk is 3 feet by 50 feet, or 3ft * 50ft = <gadget id="calculator">3*50</gadget> <output>150</output> 150 sq.ft. Each of the flower beds right in front of ...
9_474
calc
aqua_rat__VTA9evdu85u0NHOD
Which of the following is the sum of all the even numbers between 1 and 95, inclusive? Select the correct option A) 2550 B) 2448 C) 2600 D) 2499 E) 2652
This question can be solved withbunching. We're asked for the SUM of all of the EVEN integers from 1 to 95, so we really want the sum of 2, 4, 6, 8.....98. If you take the next smallest and next biggest numbers, you have... 6+94= <gadget id="calculator">6+94</gadget> <output>100</output> 100 This pattern will ...
B
calc
aqua_rat__LwYU6Aq7C6N7XpGo
P software has coding line 5% more than N, N software has coding line 5/2 more than M. M software has 108 lines of coding. find P lines. Choose the correct choice: A) 106 B) 107 C) 397 D) 109 E) 110
M s/w has 108 line of code N s/w has = 108+108*5/2= <gadget id="calculator">108+108*5/2</gadget> <output>378</output> 378 line of code P s/w 5% more N' code 378+18.9= <gadget id="calculator">378+18.9</gadget> <output>396.9</output> 396.9 or 397 line of code ANSWER:397 <result>C</result>
C
calc
ape210k__00526578
A ship sails between two piers A and B. It takes 3 hours to sail along the current and 5 hours to sail against the current. The known current velocity is 4km/h. Find the distance between the two piers.
<gadget id="calculator">4 + 4</gadget> <output>8</output> <gadget id="calculator">1 / 3</gadget> <output>1/3 = around 0.333333</output> <gadget id="calculator">1 / 5</gadget> <output>1/5 = around 0.2</output> <gadget id="calculator">(1/3) - (1/5)</gadget> <output>2/15 = around 0.133333</output> <gadget id="calculat...
60
calc
ape210k__00413374
There are 13 chickens and rabbits, and there are 40 legs, how many of them are chickens?
<gadget id="calculator">13 * 4</gadget> <output>52</output> <gadget id="calculator">52 - 40</gadget> <output>12</output> <gadget id="calculator">4 - 2</gadget> <output>2</output> <gadget id="calculator">12 / 2</gadget> <output>6</output> <result>6</result>
6
calc
ape210k__00716907
At 7:00 on the clock face, what is the angle between the hour and minute hands?
<gadget id="calculator">30 * 5</gadget> <output>150</output> <result>150</result>
150
calc
ape210k__00212151
A certain school held a New Year's fitness activity, and Class One of the sixth grade participated in two competitions. 30 people participated in the long-distance running, and 28 people participated in the rope skipping. Among them, 13 people participated in these two activities at the same time. How many people in Cl...
<gadget id="calculator">28 - 13</gadget> <output>15</output> <gadget id="calculator">30 + 15</gadget> <output>45</output> <result>45</result>
45
calc
ape210k__00726365
A piece of cloth is 3 meters long, (1/3) is used to make trousers, (1/2) is used to make a jacket, how much of this piece of cloth is left
<gadget id="calculator">1 / 3</gadget> <output>1/3 = around 0.333333</output> <gadget id="calculator">1 / 2</gadget> <output>1/2 = around 0.5</output> <gadget id="calculator">(1/3) + (1/2)</gadget> <output>5/6 = around 0.833333</output> <gadget id="calculator">1 - (5/6)</gadget> <output>1/6 = around 0.166667</output...
1/6
calc
ape210k__00423745
The school held a sports competition. There were 80 people who won the third prize. The number of people who won the first prize was the third prize (1/4), and the second prize (2/3). how many people?
<gadget id="calculator">1 / 4</gadget> <output>1/4 = around 0.25</output> <gadget id="calculator">2 / 3</gadget> <output>2/3 = around 0.666667</output> <gadget id="calculator">(1/4) / (2/3)</gadget> <output>3/8 = around 0.375</output> <gadget id="calculator">80 * (3/8)</gadget> <output>30</output> <result>30</resul...
30
calc
aqua_rat__PBAvIxjY1O3jAA13
Instead of multiplying a number by 2, the number is divided by 10. What is the percentage of error obtained ? Select: A) 94% B) 92% C) 95% D) 93% E) 97%
let the number be x the right number is 2x the wrong number is x/10 error is(2x-x/10)=19x/10 percentage of error is((19x/10)/2x)*100=95% ANSWER:95% ((19 /10)/2 )*100= <gadget id="calculator"> ((19 /10)/2 )*100</gadget> <output>95</output> 95% ANSWER:95% <result>C</result>
C
calc
aqua_rat__bopo4lIR0F0IoPCc
What is the sum of the odd integers from 35 to 65, inclusive? Pick one: A) 800 B) 550 C) 555 D) 600 E) 605
The mean is 50. Sum=Mean(# of elements) There are 16 odd numbers between 35-65 inclusive. 16*50=800 800 <result>A</result>
A
calc
ape210k__01096597
Each class of Yucai Primary School donated 48 books to Hope Primary School. There are 6 grades in Yucai Primary School, and each grade has 4 classes. How many books did Yucai Primary School donate to Hope Primary School?
<gadget id="calculator">6 * 4 * 48</gadget> <output>1_152</output> <result>1_152</result>
1_152
calc
aqua_rat__rJ2DXgz3RcGWtRGo
A thief is noticed by a policeman from a distance of 275 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km and 11 km per hour respectively. What is the distance between them after 6 minutes ? Choose the correct choice from the following answers: A) 50 meter ...
Explanation: Relative speed of the thief and policeman = (11 – 10) km/hr = 1 km/hr Distance covered in 6 minutes = 1/60∗6=1/10=100meters So distance between them after 6 minutes = 275 - 100= <gadget id="calculator">275 - 100</gadget> <output>175</output> 175 meters Option 175 meter <result>C</result>
C
calc
aqua_rat__qhszJLc0xXrLjgKC
Bradley owns x video game cartridges. If Bradley’s total is one-third the total owned by James and four times the total owned by Charles, how many video game cartridges do the three of them own altogether, in terms of x? Choose the correct option A) (16/3)x B) (17/14)x C) (13/4)x D) (19/12)x E) (17/4)x
x = Bradley’s total 3x = James’s total (1/4)x = Charles’s total Add each total x + 3x+ (1/4)x = 4x + (1/4)x = = (17/4)x Answer : (17/4)x <result>E</result>
E
calc
ape210k__00440282
42/6+□=20, how much should be filled in □
<gadget id="calculator">20 - 7</gadget> <output>13</output> <result>13</result>
13
calc
ape210k__00281784
((a)/2)+((b)/7)=(9/14), then 7a+2b=how much.
<result>9</result>
9
calc