Mathematics Quiz - Competitive Exams RRB

Free practice quiz: Mathematics (Competitive Exams RRB). 109 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This Competitive Exams RRB practice quiz has 109 multiple-choice questions on Mathematics. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What is the value of √(0.0009)?

   1. 3
   2. 0.3
   3. 0.03
   4. 0.003
   Show answer

   Answer: C. 0.03

2. If the sum of the first n terms of an AP is n² + 3n, what is the 10th term?

   1. 23
   2. 21
   3. 24
   4. 22
   Show answer

   Answer: D. 22

3. A cistern can be filled by two pipes in 12 and 15 hours respectively, and emptied by a third pipe in 20 hours. If all three pipes are opened together, in how many hours will the cistern be filled?

   1. 12 hours
   2. 8 hours
   3. 10 hours
   4. 15 hours
   Show answer

   Answer: C. 10 hours

4. If the price of an article is first increased by 10% and then decreased by 10%, what is the net change in its price?

   1. 2% decrease
   2. No change
   3. 1% decrease
   4. 1% increase
   Show answer

   Answer: C. 1% decrease

5. If A = {1,2,3} and B = {3,4}, what is A ∩ B?

   1. {3}
   2. {4}
   3. {1,2}
   4. {1,2,3,4}
   Show answer

   Answer: A. {3}

More questions in this quiz

Answers and explanations are in the full quiz.

1. The average of the first 20 natural numbers is:
2. If the cost price of 15 articles equals the selling price of 12 articles, what is the profit percentage?
3. A train 180 m long crosses a platform 240 m long in 21 seconds. What is the speed of the train in km/h?
4. Two numbers are in the ratio 3:5. If their HCF is 8, what is their LCM?
5. What is the remainder when 7^100 is divided by 5?
6. The simple interest on a sum for 3 years at 8% per annum is ₹720. What is the principal?
7. If sin θ + cos θ = √2, what is the value of sin θ cos θ?
8. A shopkeeper marks his goods 40% above cost price and gives a discount of 25%. What is his profit percentage?
9. A can do a piece of work in 12 days and B can do it in 18 days. Working together, in how many days will they finish the work?
10. The compound interest on ₹8000 for 2 years at 10% per annum compounded annually is:
11. If x + 1/x = 5, what is the value of x^2 + 1/x^2?
12. A boat covers 24 km downstream in 3 hours and returns upstream in 4 hours. What is the speed of the stream?
13. What is the area of a triangle with sides 13 cm, 14 cm, and 15 cm?
14. The value of 0.3 × 0.03 × 0.003 is:
15. The price of sugar increases by 25%. By what percentage must a family reduce its consumption to keep the expenditure unchanged?
16. What is the largest 4-digit number divisible by 88?
17. The diagonal of a square is 8√2 cm. What is its area?
18. If 2^(x+3) = 32, what is the value of x?
19. Three pipes A, B, and C can fill a tank in 6, 8, and 12 hours respectively. If all three are opened together, in how many hours will the tank be filled?
20. The median of the data set 12, 7, 15, 9, 20, 11, 14 is:
21. A sum doubles itself in 8 years at simple interest. In how many years will it become four times itself?
22. The ratio of the curved surface areas of two spheres is 4:9. What is the ratio of their volumes?
23. What is the value of (0.125)^(1/3)?
24. The mean of 5 observations is 12. If one observation 15 is removed, what is the mean of the remaining observations?
25. By selling an article for ₹720, a man loses 10%. What should be the selling price to gain 15%?
26. A train running at 72 km/h crosses a pole in 15 seconds. What is the length of the train?
27. The LCM of two numbers is 48 and their HCF is 4. If one number is 12, what is the other number?
28. What is the unit digit of 3^47?
29. At what rate percent per annum will ₹5000 amount to ₹6500 in 5 years at simple interest?
30. If tan θ = 3/4, what is the value of (sin θ + cos θ)?
31. A dishonest dealer sells goods at cost price but uses a weight of 900 g instead of 1 kg. What is his profit percent?
32. What is the least number that should be added to 2497 to make it divisible by 5, 6, and 8?
33. A and B together can complete a work in 8 days. A alone can do it in 12 days. In how many days can B alone complete the work?
34. What is the difference between the compound interest and simple interest on ₹10000 for 2 years at 5% per annum?
35. If a - 1/a = 3, what is the value of a^3 - 1/a^3?
36. The speed of a boat in still water is 10 km/h and the speed of the stream is 2 km/h. How long will it take to go 24 km downstream?
37. The perimeter of a rhombus is 40 cm and one of its diagonals is 12 cm. What is its area?
38. What is the value of (0.6)^2 + (0.4)^2 + 2 × 0.6 × 0.4?
39. What is the smallest number which when divided by 12, 15, and 20 leaves a remainder of 5 in each case?
40. The circumference of a circle is 44 cm. What is its area?
41. If log₁₀ 2 = 0.3010, what is the value of log₁₀ 8?
42. The mode of the data set 4, 6, 7, 6, 8, 6, 9, 5 is:
43. In an AP, the 5th term is 14 and the 9th term is 26. What is the first term?
44. A sum of money invested at compound interest doubles in 5 years. In how many years will it become 8 times?
45. The surface area of a cube is 96 cm². What is its volume?
46. Find the value of (sqrt(2)+sqrt(3))(sqrt(2)-sqrt(3)).
47. In how many years will the simple interest on ₹8000 at 5% per annum be ₹1200?
48. What is the H.C.F of the fractions 2/3, 8/9, and 64/81?
49. What is the value of 2^(1/2) × 2^(1/4) × 2^(1/8) ... ?
50. The sum of the squares of two positive numbers is 100 and their product is 48. What is the sum of the numbers?
51. What is the probability of getting a prime number when a fair die is rolled?
52. If the roots of the quadratic equation x^2 - 7x + 10 = 0 are a and b, what is the value of 1/a + 1/b?
53. The numerator and denominator of a fraction are in the ratio 3:4. If the numerator is decreased by 3 and the denominator is increased by 3, the fraction becomes 2/5. What is the original fraction?
54. A can do a work in 20 days. He works at it for 5 days and then B finishes it in 10 days. In how many days can A and B together finish the work?
55. What is the angle between the hands of a clock at 3:30?
56. If the length of a rectangle is increased by 20% and its breadth is decreased by 20%, what is the percentage change in its area?
57. Find the value of sin 30° cos 60° + cos 30° sin 60°.
58. What is the length of the tangent from a point 17 cm away from the centre of a circle of radius 8 cm?
59. A man can row 8 km/h in still water. If the river is running at 2 km/h, it takes him 3 hours to row to a place and back. How far is the place?
60. What is the value of (64)^(2/3) + (27)^(1/3)?

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