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1. Find the one which does not belong to that group ?
2. Out of first 20 natural numbers, one number is selected at random. The probability that it is either an even number or a prime number is -.
3. The ratio of the present age of two brothers is 1:2 and 5 years back, the ratio was 1:3. What will be the ratio of their ages after 5 years?
4. If A lends Rs.3500 to B at 10% per annum and B lends the same sum to C at 11.5% per annum then the gain of B in a period of 3 years is?
5. The sum of the two numbers is 12 and their product is 35. What is the sum of the reciprocals of these numbers?
6. Present ages of X and Y are in the ratio 5:6 respectively. Seven years hence this ratio will become 6:7 respectively. What is X's present age in years?
7. The side of a rhombus is 26 m and length of one of its diagonals is 20 m. The area of the rhombus is?
8. The average height of 50 pupils in a class is 150 cm. Five of them whose height is 146 cm, leave the class and five others whose average height is 156 cm, join. The new average height of the pupils of the class (in cm) is __________ .
9. What percent of 125 is 16?
10. In an examination 40% failed in Hindi, 45% failed in English. If 25% students failed in both the subjects. Then the percentage of failed students is?
11. A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are drawn at random, what is the probability that at least one is green?
12. The third proportional to 1 and 2 is?
13. In an election between two candidates A and B, the number of valid votes received by A exceeds those received by B by 15% of the total number of votes polled. If 20% of the votes polled were invalid and a total of 8720 votes were polled, then how many valid votes did B get?
14. 1296 ÷ (24 * 0.75) = ?
15. The current of a stream runs at the rate of 4 kmph. A boat goes 6 km and back to the starting point in 2 hours, then find the speed of the boat in still water?
16. 21345 * 45 = 4270 * ?
17. Find the one which does not belong to that group ?
18. The least number of five digits that have 144 their HCF is?
19. (49^{2} * 18^{2}) / 324 = ?
20. Eight men, ten women and six boys together can complete a piece of work in eight days. In how many days can 20 women complete the same work if 20 men can complete it in 12 days?
21. The sum of three consecutive numbers is 87. The greatest among these three number is:
22. Two pipes A and B can fill a tank in 4 and 5 hours respectively. If they are turned up alternately for one hour each, the time taken to fill the tank is?
23. Two trains 121 meters and 165 meters in length respectively are running in opposite directions, one at the rate of 80 km and the other at the rate of 65 kmph. In what time will they be completely clear of each other from the moment they meet?
24. 10 camels cost as much as 24 horses, 16 horses cost as much as 4 oxen and 6 oxen as much as 4 elephants. If the cost of 10 elephants is Rs.170000, find the cost of a camel?
25. The ratio between the present ages of A and B is 5:3 respectively. The ratio between A's age 4 years ago and B's age 4 years hence is 1:1. What is the ratio between A's age 4 years hence and B's age 4 years ago?
26. The base of a right triangle is 8 and hypotenuse is 10. Its area is?
27. What amount does Kiran get if he invests Rs.8000 at 10% p.a. compound interest for two years, compounding done annually?
28. A does a work in 10 days and B does the same work in 15 days. In how many days they together will do the same work?
29. The duplicate ratio of 3:4 is?
30. The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is?
31. A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 sec. The speed of the train is?
32. If x % of 80 = 20% of y, then x = ? and y = ?
33. If a: b = 3:4, b:c = 7:9, c:d = 5:7, find a:d?
34. Which one of the following represents the sum of the first n even numbers?
35. A person purchased a TV set for Rs. 16000 and a DVD player for Rs. 6250. He sold both the items together for Rs. 31150. What percentage of profit did he make?
36. Two trains of length 100 m and 200 m are 100 m apart. They start moving towards each other on parallel tracks, at speeds 54 kmph and 72 kmph. After how much time will the trains meet?
37. How many liters of oil at Rs.40 per liter should be mixed with 240 liters of a second variety of oil at Rs.60 per liter so as to get a mixture whose cost is Rs.52 per liter?
38. Every year an amount increases by 1/8th of itself. How much will it be after two years if its present value is Rs.64000?
39. What is the sum of all the numbers between 300 and 1000 which are divisible by 179?
40. Roja and Pooja start moving in the opposite directions from a pole. They are moving at the speeds of 2 km/hr and 3 km/hr respectively. After 4 hours what will be the distance between them?
41. LCM of 1/3, 5/6, 5/4, 10/7 is:
42. There are some pigeons and hares in a zoo. If heads are counted, there are 200. If legs are counted, there are 580. The number of hares in the zoo is?
43. (830 + ? * 3 * 14 / 100) - (830 * 14 * 3 / 100) = 20.16
44. How many four digit even numbers can be formed using the digits {2, 3, 5, 1, 7, 9}
45. The number which exceeds 16% of it by 42 is?
46. (84 ÷ 14 ÷ 2 ÷ 9) * ? = 33⅓
47. The edges of cuboid are 4 cm; 5 cm and 6 cm. Find its surface area?
48. A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in?
49. 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?
50. 7 + 1/2 of [8 - 4 / 2 * 3 - 1 + 1 + (4 + 2) - 2 * 2] = ?