1. If 2h-4k = 0 and k = h-3. What is the value of h+k ?
Ans: 9
2.One day at GBS, 1/12th of the students were absent and 1/5th of those present were on a field trip. If the number of students staying in school that day were 704. How many students were enrolled in GBS?
Ans: 960
3.During his second week on the job, a boy earned Rs.110. This represent 25% increase over his earnings earnings of the previous week. How much did he earn during his first week of work ?
Ans: Rs. 137.50
4. In the correctly worked out addition problem, each letter represents different digits, What is the value of CBA ?
3A+4A+AA=CBA
Ans: 135
5. How many integers are there between 100 and 1000 all of whose digits are odd?
Ans: 125
6. In a certain examination, a candidate has to pass in each of his 5 subjects. What is the number of ways that he can be fail ?
Ans: 31
7. If x-y=1/2 and x^2-y^2=3 what is the value of x+y ?
Ans: 6
8. If x is the cube number and square of an integer and x is between 2 and 800. What is the value of x ?
Ans: 64 and 729
9. A number, when divided by 12, gives a remainder 7. If the same number is divided by 6, then the remainder is .................?
Ans: 1
10. If w is 10% less than x, y is 30% less than z, then wy is what what percent less than xz?
Ans: 37%
11. A dishonest dealer claims that he sells his goods at the cost price but uses a false weight of 920 gram instead of 1 kg. What is the profit percent?
Ans: 8.7%
12. What is the number that is one half of one quarter one tenth of 480 ?
Ans: 6
13. If 10 people can do a piece of work in 5 days working 2 hours a day, then how long will 2 people take to do the same work working 5 hours a day ?
Ans: 10
14 What is 80% of a number whose 200% is 90 ?
Ans: 36
15. What is the area of equilateral triangle having altitude 9 cm ?
Ans: 46.756 sq.cm
16. What is the area of isosceles triangle having the sides 10 cm, 10 cm and 16 cm ?
Ans: 48 sq.cm
17. What is the difference between x% of y and y% of x ?
Ans: 0
18. What is the value of cos100.cos200.cos300…..cos900 ?
Ans: 0
19. What is the average of first 50 natural numbers?
Ans: 25.5
20. What is the surface area of a cube whose volume is 64?
Ans: 96 cm2
21. What is the number of cubic inches in one cubic foot?
Ans: 1728
22. A cuboid has dimension 3 cm, 4 cm and 12 cm respectively. What is the length of its diagonal?
Ans: 13 cm
23. What number do you get when 50 is divided by half and 20 is added?
Ans: 120
24. What is the Celsius measurement of 500 F?
Ans: 100 C
25. What are two natural numbers whose product is 65 and arithmetic mean is 9?
Ans: 13 & 5
26. What is the number that is one half of one quarter of one tenth of 480?
Ans: 6
27. What is the area of square in terms of diameter d?
Ans: ½ d2
28. What is the greatest of 3 consecutive integers whose sum is 24?
Ans: 9
29. 12 liters of water are poured into an aquarium of dimensions 50 cm x 30 cm x 40 cm. how high (in cm) will the water rise?
Ans: 8 cm
30. What is the value of tan10.tan20.tan30.tan0….tan890?
Ans: 1
31. What is single discount equivalent to the successive discount of 10% and 5% ?
Ans: 14.5%
32. A picture is copied onto a sheet of paper 8.5 inches by 10 inches. A 1.5 inch margin is left all around. What area in square inches does the picture cover ?
Ans:38.5 sq. inch
33. What is the length of a cube having space diagonal 17.32 cm long ?
Ans:10 cm
34. A river 2 m deep and 45 m wide is flowing at the rate of 3 km per hour. Find how much water runs into the sea per minute ?
Ans: 4500 cu.m.
35. What is the average of 20, 40, 50, 60 and 100?
Ans: 54
36. What percentage is Rs.12 of Rs.36 ?
Ans: 33.33%
37. By selling 33 m of cloth, a person gains the selling price of 11 m, what percent did he gain?
Ans: 50%
38. If a+b=5 and ab=6 and a>b, what is the value of a2 – b2?
Ans: 5
39. How many tangents can be drawn to a circle from an external point ?
Ans: 2
40. Which point remains invariant under rotation about (0, 0) through +900?
Ans: [0,0]
Ans: 18000 feet
42. What digit appears in the unit place in the number obtained from 2320 ?
Ans: 6
43. Two men starting from the same place walk at the rate of 4 km/hr and 4.5 km/hr respectively. How many km will they be apart at the end of 3½ hrs if they walk in opposite direction?
Ans: 29.75 km
44. A man pays an income tax Rs.840 paying 5 paisa per rupee. How much does he pay if rate is 8 paisa per rupee?
Ans: Rs.1344
45. There are certain numbers of students, if each student contributes Rs.10 more than their numbers but if there were 10 more students they should contribute Rs.10 less than their number to make the same sum. Find the number of students.
Ans: 20
46. Jagat has Rs.700. If the amount is the value of the coins of 25 Paisa, 50 Paisa and Re 1 in equal number each. Find the number of each coin.
Ans: 400 each
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