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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 255 · 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. 1.7 × (23 − 11) + 24 ÷ 3 =
  2. 2.6/9 − 2/4 =
  3. 3.How many factors does 85 have?
  4. 4.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  5. 5.Three temple bells ring every 8, 5 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.7.77 + 4.2 =
  7. 7.Find the LCM of 8, 2 and 5.
  8. 8.17.7 ÷ 3 =
  9. 9.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  10. 10.12% of a number is 9. What is the number?
  11. 11.15% of a number is 39. What is the number?
  12. 12.Which is closest to 700 + 99 + 700? (a) 1700 (b) 1400 (c) 1500 (d) 1600
  13. 13.How many factors does 94 have?
  14. 14.What is the smallest number you must take away from 779 so that it divides exactly by 3?
  15. 15.What is the smallest number you must add to 772 so that it divides exactly by 11?
  16. 16.Find the LCM of 12 and 8.
  17. 17.How many factors does 17 have?
  18. 18.55 − 24 ÷ 4 × 6 =
  19. 19.9 ÷ 3 × 9 + 11 =
  20. 20.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  21. 21.How many factors does 66 have?
  22. 22.120% of a number is 78. What is the number?
  23. 23.Find the LCM of 3, 15 and 14.
  24. 24.A hostel has enough food for 12 students for 5 days. How many days will the same food last for 5 students?
  25. 25.What is the smallest number you must take away from 454 so that it divides exactly by 13?
  26. 26.Find the smallest number bigger than 12 that leaves a remainder of 3 when divided by 12, 4 or 8.
  27. 27.150% of a number is 735. What is the number?
  28. 28.Find the LCM of 10, 2 and 15.
  29. 29.Three temple bells ring every 4, 9 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  30. 30.What percent of 40 is 30?
  31. 31.What is the smallest number you must add to 247 so that it divides exactly by 11?
  32. 32.Two tanks hold 45 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  33. 33.14 + 8 × 12 − 5 =
  34. 34.Write 11/20 as a percent.
  35. 35.Write 3/4 as a percent.
  36. 36.A hostel has enough food for 10 students for 18 days. How many days will the same food last for 4 students?
  37. 37.Which of these numbers divides exactly by 6? (a) 7477 (b) 7996 (c) 4763 (d) 1104
  38. 38.What is 75% of 368?
  39. 39.If 9 kg of rice costs ₹216, how many kg can you buy for ₹120?
  40. 40.9.8 × 3 =

Answer key

  1. 92
  2. 1/6
  3. 4
  4. 8
  5. 40
  6. 11.97
  7. 40
  8. 5.9
  9. 45
  10. 75
  11. 260
  12. 1500
  13. 4
  14. 2
  15. 9
  16. 24
  17. 2
  18. 19
  19. 38
  20. 28
  21. 8
  22. 65
  23. 210
  24. 12
  25. 12
  26. 27
  27. 490
  28. 30
  29. 36
  30. 75
  31. 6
  32. 15
  33. 105
  34. 55
  35. 75
  36. 45
  37. 1104
  38. 276
  39. 5
  40. 29.4

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