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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 202 · 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.What is 50% of 534?
  2. 2.20 ÷ 2 × 6 + 21 =
  3. 3.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  4. 4.8 × (13 − 3) + 16 ÷ 4 =
  5. 5.How many factors does 71 have?
  6. 6.10% of a number is 38. What is the number?
  7. 7.Which is closest to 1198 ÷ 31? (a) 40 (b) 80 (c) 400 (d) 20
  8. 8.Divide ₹117 between Aditya and Isha in the ratio 8 : 5. How much does Isha get (in ₹)?
  9. 9.Which is closest to 597 + 703 + 299? (a) 1700 (b) 1600 (c) 1800 (d) 1500
  10. 10.Which is closest to 396 × 68? (Round each number first.) (a) 280000 (b) 56000 (c) 2800 (d) 28000
  11. 11.What is the smallest number you must take away from 527 so that it divides exactly by 13?
  12. 12.Find the HCF of 16 and 12.
  13. 13.8/9 × 1/3 =
  14. 14.6 × (30 − 29) + 54 ÷ 6 =
  15. 15.14.1 ÷ 3 =
  16. 16.Find the HCF of 6 and 14.
  17. 17.Find the LCM of 7 and 6.
  18. 18.3/9 − 2/8 =
  19. 19.Which of these numbers divides exactly by 4? (a) 7435 (b) 2979 (c) 2149 (d) 3632
  20. 20.What is the smallest number you must take away from 256 so that it divides exactly by 3?
  21. 21.2/4 × 7/11 =
  22. 22.Two tanks hold 90 litres and 405 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  23. 23.How many factors does 31 have?
  24. 24.How many factors does 89 have?
  25. 25.2/4 × 2/11 =
  26. 26.Two tanks hold 210 litres and 240 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  27. 27.Find the LCM of 10, 8 and 3.
  28. 28.34 + 10 × 3 − 14 =
  29. 29.How many factors does 14 have?
  30. 30.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  31. 31.Two tanks hold 360 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  32. 32.A hostel has enough food for 2 students for 23 days. How many days will the same food last for 23 students?
  33. 33.5/10 − 1/11 =
  34. 34.2 × (27 − 21) + 40 ÷ 8 =
  35. 35.What is 60% of 135?
  36. 36.Find the LCM of 5, 2 and 4.
  37. 37.What percent of 40 is 38?
  38. 38.What is 1/9 of 72 litres?
  39. 39.What is the smallest number you must add to 946 so that it divides exactly by 6?
  40. 40.Farhan scored 32 marks out of 50 in a test. What percentage did Farhan score?

Answer key

  1. 267
  2. 81
  3. 20
  4. 84
  5. 2
  6. 380
  7. 40
  8. 45
  9. 1600
  10. 28000
  11. 7
  12. 4
  13. 8/27
  14. 15
  15. 4.7
  16. 2
  17. 42
  18. 1/12
  19. 3632
  20. 1
  21. 7/22
  22. 45
  23. 2
  24. 2
  25. 1/11
  26. 30
  27. 120
  28. 50
  29. 4
  30. 36
  31. 40
  32. 2
  33. 9/22
  34. 17
  35. 81
  36. 20
  37. 95
  38. 8
  39. 2
  40. 64

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