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The traffic lights at 3 different roads change after every 12 sec, 15 sec, 21 sec respectively. If they all change simultaneously at 8 AM then at what time will they again change simultaneously.
A sum of Rs. 2500 amounts to Rs. 3875 in 4 years at the rate of simple interest. What is the rate of interest?
If Rs. 782 is divided into three parts, proportional to 1/2:2/3:3/4
Share Rs.6600 among John, Jose & Binoy in the ration 2 : 4 : 6.Find the amount received by John?
John earned 40% more per month than Oscar. If john salary is decreased 10% and Oscar’s salary is increased by 10%, then john would be earning what percent more than Oscar?
In what time will a train 100 m long cross an electric pole, it its speed be 216 km/hr?
There is a 30% chance Sandy will visit China this year, while there is a 60% chance that she will visit Malaysia this year. What is the probability that Sandy will visit either China or Malaysia this year, but NOT both?
The average of 11numbers is 60. Out of 11numbers the average of first 6no. is 88, and last 6numbers is 65 then find 6th number?
A man whose speed is 4.5 kmph in still water rows to a certain upstream point and back to the starting point in a river which flows at 1.5 kmph, find his average speed for the total journey?
A starts business with a capital of Rs.1200 B and C join with some investments after 3 and 6 months respectively. If the end of a year, the profit is divided in the ratio 2:3:5 respectively. What is B's investment in the business?
If x^3 is divisible by 240 what is the least possible value of integer x?
Monica planned her birthday party. She prepared 5 muffins for each of her guests and kept aside two additional muffins in case someone will want extra. After the party, it turned out that one of the guests didn't come but every one of the guests that did come ate six muffins and 5 muffins remained. How many guests did ...
What will Rs.1500 amount to in three years if it is invested in 20% p.a. compound interest, interest being compounded annually?
If xy ≠ 0 and x^2y^2 − xy = 30, which of the following could be y in terms of x? I. 6/x II. -5/x III. 3/x
The C.I. on a certain sum for 2 years at 10% per annum is Rs. 525. The S.I. on the same sum for double the time at half the rate percent per annum is?
Working alone at their respective constant rates, A can complete a task in ‘a’ days and B in ‘b’ days. They take turns in doing the task with each working 2 days at a time. If A starts they finish the task in exact 8 days. If B starts, they take a day more. How long does it take to complete the task if they both work t...
The compound ratio of 2/3, 6/7, 1/3 and 1/9 is given by?
A man sold 20 articles for $60 and gained 10%. How many articles should he sell for $90 to incur a loss 20%?
Two trains are running in opposite directions with the same speed. If the length of each train is 420 m and they cross each other in 24 sec, then the speed of each train is?
The radius of the two circular fields is in the ratio 3: 10 the area of the first field is what percent less than the area of the second?
The salary of a typist was at first raised by 10% and then the same was reduced by 5%. If he presently draws Rs.1045.What was his original salary?
A man on tour travels first 120 km at 60 km/hr and the next 160 km at 80 km/hr. Find the average speed for first 280 km of tour.
Two friends shared the tiffin . If both ate for the same amount of food, but A only ate 3/5 of the total food, what was the ratio of B and A?
Anne bought doughnuts for a class breakfast party. She bought 15 chocolate doughnuts, 12 coconut doughnuts, and 14 jam-filled doughnuts. How many doughnuts did Anne buy in all?
A salt manufacturing company produced a total of 3000 tonnes of salt in January of a particular year. Starting from February its production increased by 100 tonnes every month over the previous months until the end of the year. Find its ave66rage daily production for that year?
In an increasing sequence of 8 consecutive even integers, the sum of the first 4 integers is 248. What is the sum of all the integers in the sequence?
Find the average of all the numbers between 11 and 36 which are divisible by 5
If log10 2 = 0.3010, the value of log10 80 is:
In how many ways can 3 black and 5 white chess pieces be arranged in a row such that they occupy alternate places? Assume that the pieces are distinct.
A survey was conducted to find out how many people in a housing colony of 144 residents could swim, dance and drive a car. It was found that the number of people who could not swim was 89, the number of people who could not dance was 100 and that the number of people who could not drive a car was 91. If the number of p...
A man whose speed is 3.5 kmph in still water rows to a certain upstream point and back to the starting point in a river which flows at 1.5 kmph, find his average speed for the total journey?
In the coordinate plane, one of the vertices of a square is the point (-3, -4). If the diagonals of that square intersect at point (5, 3), what is the area of that square?
A dishonest dealer professes to sell goods at the cost price but uses a false weight and gains 25%. Find his false weight age?
Village X has a population of 68000, Which is decreasing at the rate of 1200 per year. Village Y has a population of 42000, which is increasing at the rate of 800 per year. In how many years will the population of the two villages be equal ?
Dividing by 3⁄7 and then multiplying by 5⁄6 is the same as dividing by what number?
A work which could be finished in 9 days was finished 3 days earlier after 10 more men joined. The number of men employed was?
If each side of a right triangle is increased by 10% and the base(b) is half of the height, find the percentage change in its area?
A dog takes 5 leaps for every 6 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 :
On his drive to work, Leo listens to one of three radio stations A, B or C. He first turns to A. If A is playing a song he likes, he listens to it; if not, he turns it to B. If B is playing a song he likes, he listens to it; if not, he turns it to C. If C is playing a song he likes, he listens to it; if not, he turns o...
Ram professes to sell his goods at the cost price but he made use of 750 grms instead of a kg, what is the gain percent?
John has on his shelf three books of poetry, four novels, and three reference works. Suppose from these ten books, we were to pick two books at random. What is the probability that we pick one novel and one reference work?
In how many ways a committee,consisting of 5 men and 6 women can be formed from 8 men and 10 women?
In what ratio mental A at Rs.68 per kg be mixed with another metal at Rs.96 per kg so that cost of alloy (mixture) is Rs.78 per kg?
A pipe can fill a cistern in 20 minutes whereas the cistern when fill can be emptied by a leak in 45 minutes. When both pipes are opened, find when the cistern will be full?
If NOIDA is written as STNIF, how MEERUT can be written in that code?
If a rectangle have length 16 cm and diagonal 20cm.calculate its area.
Painter A can paint a house in 16 days, and painter B can do the same work in 20 days. With the help of painter C, they paint the house in 8 days only. Then, Painter C alone can do this task in
In a three digit number, the hundred digit is 2 more than the tens digit and the units digit is 2 less than the tens digit. If the sum of the digits is 18, find the number?
How many total numbers of seven-digit numbers can be formed having sum of whose digits is even is
Which fraction should be added to: 1/(2 Ã— 3) + 1/(3 Ã— 4) + 1/(4 Ã— 5) + ....... + 1/(29 Ã— 30) so that the result is equal to 1?
ABCD is a parallelogram on xy rectangular coordinate plane, three of the four vertices of parallelogram are (5,15) , (5,30) and (-5,15). Which can be the coordinate of fourth vertex?
The velocity of a falling object in a vacuum is directly proportional to the amount of time the object has been falling. If after 3 seconds an object is falling at a speed of 90 miles per hour, how fast will it be falling after 12 seconds?
There were two candidates in an election. Winner candidate received 62% of votes and won the election by 384 votes. Find the number of votes casted to the winning candidate?
A man buys two articles for Rs.1980 each and he gains 10% on the first and loses 10% on the next. Find his total gain or loss percent?
How many of the positive factors of 24 are not factors of 30
How many ways could three people sit at a table with five seats in which two of the five seats will remain empty?
Find the number of zeroes at the end of 50!
A business executive and his client are charging their dinner tab on the executive's expense account.The company will only allow them to spend a total of 60$ for the meal.Assuming that they will pay 7% in sales tax for the meal and leave a 15% tip,what is the most their food can cost?
Which of the following integers is NOT a divisor of x if x = (21)(3^7) + (23)?
A starts business with Rs. 3500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2:3. What is B's contribution in the capital
A Private Limited company have 20 staffs and they celebrated one festival. Director gives Rs.10000/- to his accountant and told him to 4500/- to each staff Rs. 2000/- each to cleaning staff and cooking staff and balance for you. Then how much amount accountant received?
What is the decimal equivalent of (1/4)^3?
What is the sum of natural numbers between 50 and 100
if log10 7 = a then log10 (1/70) equal to
A train travelled from station P to Q in 8 hours and came back from station Q to P is 6 hours. What would be the ratio of the speed of the train while traveling from station P to Q to that from station Q to P?
The three digits of a number add up to 20. The number is divisible by 5. The leftmost digit is double the middle digit. What is the product of the three digits?
During a Pizza buffet where A eats more times 2.5 than B, and B eats 7 times less than C.find the least number of times all the three has to eat
A sum of Rs.5000 was divided into 30 persons such that each man gets Rs.200 and each woman gets Rs.150. Find the number of women.
What least number must be added to 3000 to obtain a number exactly divisible by 19 ?
A boat moves upstream at the rate of 1 km in 20 minutes and down stream 1 km in 9 minutes. Then the speed of the current is :
A vessel has 300 ml of pure milk. 30 ml of milk is removed and 30 ml of water is added into the vessel. If this operation is repeated another 2 times, what is the % of milk in the vessel at the end?.
There is a rectangular prism made of 1 in cubes that has been covered in tin foil. There are exactly 128 cubes that are not touching any tin foil on any of their sides. If the width of the figure created by these 128 cubes is twice the length and twice the height, what is the p measure in inches of the width of the foi...
A certain number of men can do a work in 65 days working 6 hours a day. If the number of men are decreased by one-fourth, then for how many hours per day should they work in order to complete the work in 40 days?
Four people are to be selected to receive a modeling contract from a group of 10 men, 5 women and 2 children. How many ways are possible in which 2 men, one woman and one child will receive a contract?
If a man can cover 16 metres in one second, how many kilometres can he cover in 3 hours 45 minutes?
A class of 40 students has an average height of 120 cm. four students whose average height is 160 cm, left the class and four others whose average height is 124 cm, joined. Calculate the new average height of the students of the class (in cm) is?
At an election 2 candidates are participated and a candidate got 30% of votes and defeated by 1000. and 100 votes are invalid. Find the total polled votes?
A class has a ratio of 3:6:7 of children with red hair, blonde hair and black hair respectively. If the class has 9 kids with red hair, how many kids are in the class?
A palindrome is a number that reads the same front-to-back as it does back-to-front (e.g. 202, 575, 1991, etc.) p is the smallest integer greater than 400 that is both a prime and a palindrome. What is the sum of the digits of p?
300 liters of a mixture contains milk and water in the ratio 3:2 If 15 liters of this mixture be replaced by 15 liters of milk, the ratio of milk to water in the new mixture would be?
12 points lie on a circle. How many cyclic quadrilaterals can be drawn by using these points?
Jones covered a distance of 50 miles on his first trip. On a later trip he traveled 300 miles while going three times as fast. His new time compared with the old time was
Two dice are thrown together .What is the probability that the sum of the number on the two faces is divided by 4 or 6
By weight, liquid X makes up 2 percent of solution P and 7.5 percent of solution Q. If 400 grams of solution P are mixed with 600 grams of solution Q, then liquid X accounts for what percent of the weight of the resulting solution?
If (\|p\|!)^p=\|p\|!, which of the following could be the value(s) of p ?
The probability that a convenience store has no iced tea is 50%. If Karl is stopping by 4 convenience stores on his way to work, what is the probability thatat least oneof the stores will not have a can of iced tea?
A man gains 20% by selling an article at a certain price. If the sells it at double the price, the percentage of profit will be?
A rectangular circuit board is designed to have width w inches, perimeter p inches, and area M square inches. Which of the following equations must be true?
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?
The probabilities of solving a question by 3students A, B & C are 1/2,1/3 &1/4, respectively. The probability that the problem will be solved is?
Find the percentage gain if a shop owner sells 40 mtr of fabric and gains Cost Price of 15 meters?
Approximately how many cubic feet of water are needed to fill a circular swimming pool that is 40 feet across and 7 feet deep?
Ramu bought an old car for Rs. 38000. He spent Rs. 12000 on repairs and sold it for Rs. 64900. What is his profit percent?
In 1990 the budgets for projects Q and V were $540,000 and $780,000, respectively. In each of the next 10 years, the budget for Q was increased by $30,000 and the budget for V was decreased by $10,000. In which year was the budget for Q equal to the budget for V ?
If s is the product of the integers from 30 to 40 inclusive, and if t is the product of the integers from 30 to 41 inclusive, what is 1/s + 1/t in terms of t?
How many seconds will a train 100 meters long take to cross a bridge 130 meters long if the speed of the train is 36 kmph?
Sam has forgotten his friend’s seven-digit telephone number. He remembers the following: the first three digits are either 635 or 674, the number is odd, and the number nine appears once. If Sam were to use a trial and error process to reach his friend, what is the minimum number of trials he has to make before he can ...
A contractor undertook to finish a job in 150 days and employed 200 men. After 50 days he found that only 1/4 of work was finished. How many extra days are needed if he employs 50 more men?
Murali travelled from city A to city B at a speed of 40 kmph and from city B to city C at 60 kmph. What is the average speed of Murali from A to C given that the ratio of distances between A to B and B to C is 4 : 2?
14, 35, 56, 91, 126, 238 In the sequence above, each term is related with the others. Which of the following could not be a term in the sequence?

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