dataset
stringclasses
5 values
id
stringlengths
6
18
question
stringlengths
3
1.92k
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answer
stringclasses
5 values
aqua_train
aqua_train_28613
A man can row downstream at 18 kmph and upstream at 10 kmph. Find the speed of the man in still water and the speed of stream respectively?
[ "A)14,7", "B)64,4", "C)18,4", "D)14", "4", "E)12,4" ]
D
aqua_train
aqua_train_86746
If a rectangle have length 16 cm and diagonal 20cm.calculate its area.
[ "A)185", "B)132", "C)165", "D)192", "E)212" ]
D
aqua_train
aqua_train_59494
For all real numbers v, an operation is defined by the equation v* = v - v/3. If (v*)* = 24, then v=
[ "A)45", "B)48", "C)51", "D)54", "E)57" ]
D
aqua_train
aqua_train_46194
The dimensions of a room are 25 feet * 15 feet * 12 feet. What is the cost of white washing the four walls of the room at Rs. 5 per square feet if there is one door of dimensions 6 feet * 3 feet and three windows of dimensions 4 feet * 3 feet each?
[ "A)4538", "B)4529", "C)4528", "D)4530", "E)4598" ]
D
sciq
sciq_4
What type of fibrous joint is found between most bones of the skull?
[ "lobiture", "aperture", "trecature", "suture" ]
D
aqua_train
aqua_train_68642
A person travels equal distances with speeds of 3 km/hr, 4 km/hr and 5 km/hr and takes a total time of 54 minutes. The total distance is?
[ "A)1 km", "B)2 km", "C)3 km", "D)3.4 km", "E)5 km" ]
D
science_train
science_train_5827
Question: Is a stuffed rabbit a solid or a liquid? Hints:
[ "a liquid", "a solid" ]
B
aqua_train
aqua_train_82946
What is the next number in the sequence below? 1 4 9 16 25 36 49 64__ ?
[ "A)121", "B)100", "C)49", "D)64", "E)81" ]
E
aqua_train
aqua_train_80064
How many seconds will a 400 meter 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?
[ "A)287", "B)288", "C)900", "D)277", "E)121" ]
C
aqua_train
aqua_train_65513
A and B together have Rs. 1210. If 4/15 of A's amount is equal to 2/5 of B's amount, how much amount does B have?
[ "A)290", "B)570", "C)500", "D)484", "E)421" ]
D
aqua_train
aqua_train_84098
The distance from City A to City B is 120 miles. While driving from City A to City B, Cara drives at a constant speed of 30 miles per hour. Dan leaves City A 90 minutes after Cara. What is the minimum constant speed in miles per hour that Dan must exceed in order to arrive in City B before Cara?
[ "A)42", "B)44", "C)46", "D)48", "E)50" ]
D
aqua_train
aqua_train_50460
If the a radio is sold for rs 490 and sold for rs 465.50.find loss%.
[ "A)2", "B)4", "C)3", "D)5", "E)6" ]
D
aqua_train
aqua_train_87477
Let A be the event that a randomly selected two digit number is divisible by 3 and let B be the event that a randomly selected two digit number is divisible by 10. What is P(A and B)?
[ "A)1/30", "B)1/15", "C)1/5", "D)1/3", "E)1/2" ]
A
aqua_train
aqua_train_95625
The average temperature on Monday, Tuesday and Wednesday was 250. The average temperature on Tuesday, Wednesday and Thursday was 240. If the temperature on Thursday was 270, what was the temperature on Monday?
[ "A)240", "B)210", "C)270", "D)300", "E)400" ]
D
sciq
sciq_4
What do secondary spermatocytes form when completing meiosis?
[ "pores", "semen", "sporozoans", "spermatids" ]
D
aqua_train
aqua_train_68870
Which of the following expressions CANNOT be equal to 0 when x^2 βˆ’ 3x = 18 ?
[ "A)x^2 βˆ’ 4x βˆ’12", "B)x^2 βˆ’ x βˆ’ 12", "C)x^2 βˆ’ 3x = 18", "D)x^2 βˆ’ 5x βˆ’ 6", "E)x^2 βˆ’ 4x βˆ’ 21" ]
C
aqua_train
aqua_train_58429
A, B and C start a business with each investing Rs 20,000. After 5 months A withdraws Rs 5000, B withdraws Rs 4000 and C invests Rs 6000 more. At the end of the year, a total profit of Rs 69900 was recorded. Find the share of A.
[ "A)20000", "B)21500", "C)20500", "D)22000", "E)21000" ]
C
aqua_train
aqua_train_68522
Tanya prepared 6 different letters to 6 different addresses. For each letter, she prepared one envelope with its correct address. If the 6 letters are to be put into the four envelopes at random, what is the probability that only one letter will be put into the envelope with its correct address?
[ "A)1/24", "B)1/8", "C)1/4", "D)1/3", "E)3/8" ]
E
aqua_train
aqua_train_2991
A can run a kilometer race in 4 1/2 min while B can run same race in 5 min. How many meters start can A give B in a kilometer race, so that the race mat end in a dead heat?
[ "A)200 m", "B)700 m", "C)800 m", "D)100 metre", "E)1300 m" ]
D
aqua_train
aqua_train_9742
1,5,13,25,__
[ "A)26", "B)30", "C)31", "D)41", "E)43" ]
D
aqua_train
aqua_train_40641
In the following equation what value would come in place of question mark (?)? 5798 – ? = 7385 – 4632
[ "A)3225", "B)2595", "C)2775", "D)3045", "E)None of these above" ]
D
sciq
sciq_4
What is the protist kingdom sometimes called as?
[ "fossil can kingdom", "flora can system", "plant can kingdom", "trash can kingdom" ]
D
aqua_train
aqua_train_44664
Frances can complete a job in 12 hours, and Joan can complete the same job in 9 hours. Frances starts the job at 9 a.m., and stops working at 5 p.m. If Joan starts working at 5 p.m. to complete the job, at what time is the job finished?
[ "A)6 p.m.", "B)7 p.m.", "C)8 p.m.", "D)10 p.m.", "E)12 p.m." ]
C
aqua_train
aqua_train_76453
A man can row a boat at 24 kmph in still water. If the speed of the stream is 8 kmph, what is the time taken to row a distance of 100 km downstream?
[ "A)24/8", "B)25/8", "C)23/8", "D)21/8", "E)20/8" ]
B
aqua_train
aqua_train_21873
log42 - log82 + log16 2 -…. to ∞ is
[ "A)e2", "B)ln2+1", "C)ln2-1", "D)1-ln2", "E)None of these" ]
D
aqua_train
aqua_train_80782
The average age of a family of 6 members is 34 years.If the age of the youngest member is 7 years,what was the average age of the family at the birth of the youngest member?
[ "A)15", "B)18", "C)21", "D)12", "E)27" ]
E
aqua_train
aqua_train_4232
8.008/4.004
[ "A)2", "B)0.02", "C)0.2", "D)20", "E)2" ]
A
aqua_train
aqua_train_1950
Water consists of hydrogen and oxygen, and the approximate ratio, by mass, of hydrogen to oxygen is 2:16. Approximately how many grams of hydrogen are there in 117 grams of water?
[ "A)7", "B)9", "C)11", "D)13", "E)15" ]
D
aqua_train
aqua_train_68987
The average of five natural numbers is 150. A particular number among the five exceeds another by 100. The rest three numbers lie between these two numbers and they are equal. How many different values can the largest number among the five take?
[ "A)59", "B)19", "C)21", "D)18", "E)42" ]
B
aqua_train
aqua_train_55553
John have a 630ml mixture of milk and water in the ratio 7:2. How much water must be added to make the ratio 7:3?
[ "A)40 m", "B)50 m", "C)70 m", "D)90 m", "E)100 m" ]
C
sciq
sciq_4
What were the first forms of life on earth?
[ "aniryotes", "eukaryotes", "protists", "prokaryotes" ]
D
science_train
science_train_333
Question: Which property do these four objects have in common? Hints:
[ "salty", "sweet", "rough" ]
C
aqua_train
aqua_train_58123
Reema took a loan of Rs 1100 with simple interest for as many years as the rate of interest. If she paid Rs. 704 as interest at the end of the loan period, what was the rate of interest.
[ "A)5%", "B)6%", "C)7%", "D)8%", "E)9%" ]
D
aqua_train
aqua_train_23065
There are 12 points in a given plane, no three of which are on the same line. If one of the points is represented as 'A', then how many triangles can be determined with the 12 points that contain the point A?
[ "A)55", "B)105", "C)182", "D)210", "E)455" ]
A
sciq
sciq_4
The atmosphere consists of oxygen, nitrogen, carbon dioxide, which exerts a certain pressure referred to as what?
[ "gravity pressure", "tidal pressure", "nitrogen pressure", "atmospheric pressure" ]
D
aqua_train
aqua_train_90597
A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :
[ "A)1/4", "B)1/10", "C)7/15", "D)8/15", "E)9/15" ]
D
aqua_train
aqua_train_50192
The commuter rail between Scottsdale and Sherbourne is 200 km of track, and one train makes a round trip in 5 hours. If Harsha boards the train at the Forest Grove station, which is located one fifth of the track's length out from Scottsdale, how long will it take her to get to Sherbourne?
[ "A).5 hours", "B)1 hour", "C)1.5 hours", "D)2 hours", "E)2.5 hours" ]
D
aqua_train
aqua_train_9081
On a track for remote controlled racing cars, racing car A completes the track in 55 seconds, while racing car B completes it in 36 seconds. If they both start at the same time after how many seconds will they be side by side again.
[ "A)275", "B)325", "C)1980", "D)425", "E)None of these" ]
C
aqua_train
aqua_train_25979
A is thrice as good as B in work. A is able to finish a job in 60 days less than B. They can finish the work in - days if they work together.
[ "A)18 days", "B)22 Β½ days", "C)24 days", "D)26 days", "E)28 days" ]
B
aqua_train
aqua_train_48431
Find the HCF of 2.1, 1.05 and 0.63
[ "A)0.44", "B)0.64", "C)0.21", "D)0.24", "E)None of above" ]
C
aqua_train
aqua_train_7644
What is the ratio whose term differ by 25 and the measure of which is 2/7?
[ "A)A)32:23", "B)B)16:56", "C)C)71:85", "D)D)32:39", "E)E)10:35" ]
E
aqua_train
aqua_train_23475
If a and b are positive integers and (2^a)^b = 2^2, what is the value of 2^a*2^b?
[ "A)8", "B)4", "C)16", "D)32", "E)64" ]
A
sciq
sciq_4
What is the term for the energy of motion, which is exhibited by the speed of an object?
[ "inertia", "mechanical energy", "residual energy", "kinetic energy" ]
D
aqua_train
aqua_train_26885
A certain boxer has agreed to pay his opponent a fee of 3% of his total purse for every pound over the specified weight limit he weighs in. If the boxer pays his opponent a fee of $26,250 after weighing in seven pounds over the specified limit, what was the boxer's purse?
[ "A)$65,625", "B)$105,000", "C)$125,000", "D)$183,750", "E)$1,050,000" ]
C
aqua_train
aqua_train_70939
A man can row upstream at 25 kmph and downstream at 35 kmph, and then find the speed of the man in still water?
[ "A)22", "B)27", "C)30", "D)82", "E)21" ]
C
aqua_train
aqua_train_25673
In a family 19 people eat only vegetarian, 9 people eat only non veg., 12 people eat both veg and non veg.. How many people eat veg in the family?
[ "A)20", "B)31", "C)9", "D)31", "E)21" ]
B
aqua_train
aqua_train_60892
X and Y are integers, X is even and negative, Y is odd and positive. Which of the following could be false? 1. (X + Y) is an odd number. 2. Y^(X + Y) is an integer. 3. X^Y is a negative number.
[ "A)2 only.", "B)3 only.", "C)1 and 3 only.", "D)2 and 3 only.", "E)1", "2 and 3." ]
C
aqua_train
aqua_train_17023
A company D has 15 percent of the employees are secretaries and 45 percent are salespeople. If there are 50 other employees of Company D, how many employees does Company D have?
[ "A)200", "B)125", "C)180", "D)152", "E)250" ]
B
aqua_train
aqua_train_13242
The length of a rectangular plot is thrice its breadth. If the area of the rectangular plot is 867 sq m, then what is the breadth of the rectangular plot?
[ "A)18 m", "B)17 m", "C)26 m", "D)27 m", "E)15 m" ]
B
sciq
sciq_4
The ability to maintain a stable internal temperature, despite the climate, is exhibited by members of what animal group?
[ "fish", "parasites", "reptiles", "mammals" ]
D
ds_train
ds_train_2207
In the context of digital communications, consider a communication system that employs a (7, 4) Hamming code for error detection and correction. If a received 7-bit codeword contains a single-bit error, what will the syndrome indicate?
[ "A. The position of the erroneous bit in the codeword\nB. That the codeword is error-free\nC. That there are multiple bit errors\nD. The original message without error-correction" ]
A
aqua_train
aqua_train_88992
Out of 10 persons working on a project, 4 are graduates. If 3 are selected, what is the probability that there is at least one graduate among them?
[ "A)5/7", "B)5/3", "C)5/1", "D)5/6", "E)5/2" ]
D
aqua_train
aqua_train_5972
A completes 80% of a work in 20 days. Then B also joins and A and B together finish the remaining work in 3 days. How long does it need for B if he alone completes the work?
[ "A)37 Β½ days", "B)22 days", "C)31 days", "D)20 days", "E)24 days" ]
A
aqua_train
aqua_train_76685
The average of 10 numbers is 23. If each number is increased by 4, what will the new average be?
[ "A)22", "B)27", "C)88", "D)76", "E)16" ]
B
aqua_train
aqua_train_72554
A = {0, 1, -3, 6, -8, 20, 4} B = {-1, 2, -4, 7, 5} If a is a number that is randomly selected from Set A, and b is a number that is randomly selected from Set B, what is the probability that ab > 0?
[ "A)1/4", "B)1/3", "C)2/5", "D)4/9", "E)12/35" ]
E
aqua_train
aqua_train_46422
If 10 and 15 are the lengths of two sides of a triangular region, which of the following can be the length of the third side? I. 5 II. 15 III. 20
[ "A)I only", "B)II only", "C)I and II only", "D)II and III only", "E)I", "II", "and III" ]
D
science_train
science_train_153
Question: Each bus takes the same amount of time to stop. Which school bus needs a larger force to come to a stop? Hints:
[ "a school bus carrying 700 pounds", "a school bus carrying 500 pounds" ]
A
sciq
sciq_4
What are the structural and functional units of the nervous system, which transmit nerve impulses to other cells?
[ "axions", "ions", "electrons", "neurons" ]
D
aqua_train
aqua_train_47453
For what value of x between βˆ’ 7 and 7, inclusive, is the value of x^2 βˆ’ 10x + 16 the greatest?
[ "A)βˆ’ 7", "B)βˆ’ 2", "C)0", "D)2", "E)7" ]
A
aqua_train
aqua_train_42406
The sum of 4 hours 45 minutes and 5 hours 55 minutes is approximately what percent of a day?
[ "A)32%", "B)36%", "C)40%", "D)44%", "E)48%" ]
D
sciq
sciq_4
Acidity is measured on what kind of scale?
[ "electromagnetic scale", "caloric scale", "pneumatic scale", "ph scale" ]
D
sciq
sciq_4
What does increased temperature do to a substance's kinetic energy?
[ "generates", "nothing", "decreases", "increases" ]
D
aqua_train
aqua_train_77589
Kim bought a total of $2.65 worth of postage stamps in four denominations. If she bought an equal number of 2-cent and 20-cent stamps and twice as many 10-cent stamps as 5-cent stamps, what is the least number of 1-cent stamps she could have bought?
[ "A)5", "B)10", "C)55", "D)80", "E)95" ]
C
aqua_train
aqua_train_44734
The length of a rectangular plot is 10 meters more than its width. If the cost of fencing the plot at $15.50 per meter is $682, what is the length of the plot in meters?
[ "A)10", "B)12", "C)14", "D)16", "E)18" ]
D
aqua_train
aqua_train_5593
The average age of a class of 32 students is 16 yrs. if the teacher's age is also included, the average increases by one year. Find the age of the teacher
[ "A)30 Years", "B)31 Years", "C)32 Years", "D)34 Years", "E)49 Years" ]
E
aqua_train
aqua_train_23471
An association of mathematics teachers has 1,260 members. Only 525 of these members cast votes in the election for president of the association. What percent of the total membership voted for the winning candidate if the winning candidate received 62 percent of the votes cast?
[ "A)75%", "B)58%", "C)42%", "D)34%", "E)25.83%" ]
E
aqua_train
aqua_train_33175
The digital sum of a number is the sum of its digits. For how many of the positive integers 24-100 inclusive is the digital sum a multiple of 7?
[ "A)7", "B)11", "C)14", "D)16", "E)20" ]
B
aqua_train
aqua_train_36994
If the average marks of two sections of 40 and 45 students respectively is 75 and 60, then the average marks of all the students is:
[ "A)53.33", "B)67.05", "C)75", "D)None of these", "E)Cannot be determined" ]
B
aqua_train
aqua_train_28519
If n is not equal to zero, and n+1/n = 10, then what is the value of n^4 + (1/n)^4?
[ "A)9598", "B)9600", "C)9602", "D)9604", "E)9606" ]
C
sciq
sciq_4
What is a funnel-shaped cloud of whirling high winds known as?
[ "volcano", "tsunami", "hurricane", "tornado" ]
D
aqua_train
aqua_train_4344
In the new budget the price of milk rose by 20%. By how much percent must a person reduce his consumption so that his expenditure on it does not increase?
[ "A)7.5%", "B)9.1%", "C)10.9%", "D)16.67%", "E)15%" ]
D
aqua_train
aqua_train_83742
If 10 farmers can reap a field in 8 days, then 8 farmers will reap the same field in :
[ "A)5 days", "B)10 days", "C)4 days", "D)20 days", "E)None of these" ]
B
aqua_train
aqua_train_77229
The average of a set of five distinct integers is 400. If each number is less than 2,000, and the median of the set is the greatest possible value, what is the sum of the two smallest numbers?
[ "A)-4,494", "B)-3,994", "C)-3,494", "D)-3,194", "E)The answer cannot be determined from the information given" ]
B
aqua_train
aqua_train_11081
There are 20 brown dogs, 10 white dogs, 15 black dogs.Totally how many dogs are there in all?
[ "A)45", "B)15", "C)25", "D)5", "E)30" ]
A
science_train
science_train_826
Question: Select the amphibian below. Hints:
[ "horned frog", "toco toucan", "ostrich", "bald eagle" ]
A
aqua_train
aqua_train_30891
Two trains are moving at 50 kmph and 70 kmph in opposite directions. Their lengths are 170 m and 100 m respectively. The time they will take to pass each other completely is?
[ "A)3 sec", "B)8 sec", "C)9 sec", "D)5 sec", "E)7 sec" ]
B
aqua_train
aqua_train_52460
In a house a hall is 20 m long, 15m wide and 5m high. Its interior has to be covered with mat. What will be the total expenditure if it costs Rs. 60 per square m?
[ "A)Rs. 50000", "B)Rs. 52000", "C)Rs. 57000", "D)Rs. 60000", "E)Rs. 62000" ]
C
aqua_train
aqua_train_61634
If k^2 = n^2, which of the following must be true?
[ "A)k = m", "B)k = -m", "C)|k| = |n|", "D)k = -|m|", "E)k = |m|" ]
C
aqua_train
aqua_train_8153
City X has a population 6 times as great as the population of City Y, which has a population twice as great as the population of City Z. What is the ratio of the population of City X to the population of City Z?
[ "A)1:8", "B)1:4", "C)2:1", "D)4:1", "E)12:1" ]
E
aqua_train
aqua_train_24646
A jogger running at 9 km/hr along side a railway track is 200 m ahead of the engine of a 200 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger?
[ "A)89", "B)20", "C)40", "D)88", "E)34" ]
C
aqua_train
aqua_train_21747
The present ages of three persons are in the proportion of 4 : 7 : 9. Eight years ago, the sum of their ages was 76. Find their present ages.
[ "A)20,35,45", "B)8,20,28", "C)16,28,36", "D)16,28,46", "E)None of these" ]
A
sciq
sciq_4
All cells need what for processes like active transport?
[ "hydrogen", "sunlight", "oxygen", "energy" ]
D
aqua_train
aqua_train_35417
In how many a committee of 5 members can be selected from 6men 5 ladies consisting of 3 men and 2 ladies
[ "A)451", "B)175", "C)154", "D)200", "E)120" ]
D
aqua_train
aqua_train_75917
Two pipes A and B can separately fill a cistern in 10 and 15 minutes respectively. A person opens both the pipes together when the cistern should have been was full he finds the waste pipe open. He then closes the waste pipe and in another 4 minutes the cistern was full. In what time can the waste pipe empty the cister...
[ "A)1/8", "B)1/3", "C)1/9", "D)1/2", "E)1/4" ]
B
aqua_train
aqua_train_63123
What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?
[ "A)150", "B)130", "C)154", "D)100", "E)220" ]
D
aqua_train
aqua_train_17011
A train is moving at a speed of 132 km/hr. If the length of the train is 200 meters, how long will it take to cross a railway platform 240 meters long
[ "A)6 Β½ sec", "B)7 Β½ sec", "C)12 sec", "D)8 Β½ sec", "E)9 sec" ]
C
aqua_train
aqua_train_85925
A circle and a rectangle have the same perimeter. The sides of the rectangle are 18 cm and 26 cm. What is the area of the circle ?
[ "A)88 cm2", "B)154 cm2", "C)1250 cm2", "D)616 cm2", "E)None of these" ]
D
aqua_train
aqua_train_921
The cost of 10 kg of mangos is equal to the cost of 24 kg of rice. The cost of 6 kg of flour equals the cost of 2 kg of rice. The cost of each kg of flour is $22. Find the total cost of 4 kg of mangos, 3 kg of rice and 5 kg of flour?
[ "A)347.6", "B)987.6", "C)941.6", "D)637.6", "E)667.6" ]
C
ds_train
ds_train_2121
In automated reasoning, which of the following is the primary goal of using a resolution-based theorem prover?
[ "A. To transform first-order logic statements into conjunctive normal form (CNF)\nB. To establish the unsatisfiability of a set of first-order logic clauses\nC. To generate all possible models for a given set of first-order logic statements\nD. To find the most probable interpretation of a given logical formula" ]
B
sciq
sciq_4
What blood component serves both structural and molecular functions in blood clotting?
[ "molecules", "plasma", "proteins", "platelets" ]
D
aqua_train
aqua_train_21552
The average age of a group of 10 persons was decreased by 3 years when one person, whose age was 42 years, was replaced by a new person. Find the age of the new person?
[ "A)18", "B)56", "C)12", "D)17", "E)14" ]
C
sciq
sciq_4
What are the blood vessels that carry blood toward the heart and tend to have thinner walls?
[ "capillaries", "glands", "clots", "veins" ]
D
aqua_train
aqua_train_82496
A person buys an article at Rs.575. At what price should he sell the article so as to make a profit of 15%?
[ "A)600", "B)277", "C)269", "D)661.25", "E)281" ]
D
aqua_train
aqua_train_21943
If the product of two positive integers is 40, which of the following could be the LCM and HCF of the two numbers? a. LCM 20 : HCF 2 b. LCM 40 : HCF 5 c. LCM 20 : HCF 4
[ "A)b only", "B)c only", "C)a only", "D)a", "c only", "E)a", "b only" ]
C
sciq
sciq_4
Roundworms are intervertebrates that belong to which phylum?
[ "annelida", "Gordiacea", "amoebozoa", "nematoda" ]
D
aqua_train
aqua_train_45366
Mr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in scheme B?
[ "A)6400", "B)2777", "C)2666", "D)2888", "E)1671" ]
A
aqua_train
aqua_train_84072
The ratio of two quantities is 1 to 2. If each of the quantities is increased by 15, what is the ratio of these 2 new quantities?
[ "A)5:6", "B)25:27", "C)15:16", "D)20:21", "E)It cannot be determined from the information given" ]
E
aqua_train
aqua_train_19914
Find the average of first 10 multiples of 7
[ "A)35.5", "B)37.5", "C)38.5", "D)40.5", "E)None of these" ]
C
aqua_train
aqua_train_22984
A number consists of 3 digits whose sum is 10. The middle digit is equal to the sum of the other two and the number will be increased by 99 if its digits are reversed. The number is:
[ "A)250", "B)330", "C)352", "D)253", "E)163" ]
D
aqua_train
aqua_train_83831
David covered a distance of 50 miles on his first trip. On a later trip he traveled 150 miles while going three times as fast. His new time compared with the old time was:
[ "A)twice as much", "B)three times as much", "C)the same", "D)half as much", "E)a third as much" ]
C