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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 33 · 40 questions
TalentJR

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

NameDateTime takenScore ___ / 40
  1. 1.Two tanks hold 250 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  2. 2.59 − 54 ÷ 6 × 5 =
  3. 3.Round 14.29 to one decimal place. =
  4. 4.What is 3/8 of ₹224?
  5. 5.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  6. 6.40% of a number is 4. What is the number?
  7. 7.What is 1/2 of 16 kg?
  8. 8.Two tanks hold 30 litres and 35 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  9. 9.Which is closest to 792 ÷ 41? (a) 40 (b) 200 (c) 20 (d) 10
  10. 10.Find the HCF of 45 and 10.
  11. 11.Aarav takes 40 seconds and Arjun takes 50 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  12. 12.3.7 × 2 =
  13. 13.10 : 11 = 30 : ?
  14. 14.Write 13/50 as a percent.
  15. 15.Round 10493 to the nearest ten.
  16. 16.If 6 kg of rice costs ₹174, how many kg can you buy for ₹116?
  17. 17.Round 22539 to the nearest thousand.
  18. 18.4.1 × 6 =
  19. 19.Which of these numbers divides exactly by 11? (a) 3709 (b) 3722 (c) 1308 (d) 9174
  20. 20.2.16 + 6.9 =
  21. 21.What is the smallest number you must add to 290 so that it divides exactly by 13?
  22. 22.20% of a number is 17. What is the number?
  23. 23.Find the LCM of 25 and 30.
  24. 24.A car goes 57 km on 3 litres of petrol. How far can it go on 25 litres (in km)?
  25. 25.What is 2/3 of 33 km?
  26. 26.How many factors does 97 have?
  27. 27.36 + 2 × 11 − 36 =
  28. 28.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 3, 6 or 9.
  29. 29.The HCF of two numbers is 8 and their LCM is 224. One of the numbers is 32. What is the other number?
  30. 30.45.9 ÷ 9 =
  31. 31.3 × (27 − 26) + 6 ÷ 2 =
  32. 32.A hall floor is 300 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  33. 33.Rohan scored 2 marks out of 25 in a test. What percentage did Rohan score?
  34. 34.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  35. 35.3/4 of 40 + 3 × 5 =
  36. 36.How many factors does 37 have?
  37. 37.Which of these numbers divides exactly by 11? (a) 2069 (b) 6380 (c) 2637 (d) 9336
  38. 38.Which of these numbers divides exactly by 3? (a) 1667 (b) 5638 (c) 2242 (d) 2253
  39. 39.What is 12% of 225?
  40. 40.(20 + 16) × 4 − 15 =

Answer key

  1. 50
  2. 14
  3. 14.3
  4. 84
  5. 27
  6. 10
  7. 8
  8. 5
  9. 20
  10. 5
  11. 200
  12. 7.4
  13. 33
  14. 26
  15. 10490
  16. 4
  17. 23000
  18. 24.6
  19. 9174
  20. 9.06
  21. 9
  22. 85
  23. 150
  24. 475
  25. 22
  26. 2
  27. 22
  28. 19
  29. 56
  30. 5.1
  31. 6
  32. 10
  33. 8
  34. 128
  35. 45
  36. 2
  37. 6380
  38. 2253
  39. 27
  40. 129

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