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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 594 · 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.How many factors does 98 have?
  2. 2.(4 + 6) × 5 − 28 =
  3. 3.90 − 14 ÷ 2 × 9 =
  4. 4.The ratio of boys to girls in a class is 5 : 4. There are 20 boys. How many girls are there?
  5. 5.1/2 of 20 + 3 × 7 =
  6. 6.What percent of 250 is 5?
  7. 7.What is 15% of 460?
  8. 8.Three temple bells ring every 8, 24 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.Which of these numbers divides exactly by 11? (a) 8376 (b) 2483 (c) 8023 (d) 3608
  10. 10.Find the HCF of 24 and 28.
  11. 11.95 − 16 ÷ 2 × 7 =
  12. 12.Which of these numbers divides exactly by 8? (a) 8512 (b) 9710 (c) 1823 (d) 5916
  13. 13.If 6 cricket balls cost ₹138, how much do 14 cricket balls cost (in ₹)?
  14. 14.Isha takes 90 seconds and Pooja 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?
  15. 15.What percent of 40 is 2?
  16. 16.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  17. 17.Find the LCM of 7, 3 and 9.
  18. 18.How many factors does 24 have?
  19. 19.Write 2/5 as a percent.
  20. 20.Which of these numbers divides exactly by 9? (a) 8758 (b) 1730 (c) 4426 (d) 3321
  21. 21.What is 80% of 400?
  22. 22.How many factors does 39 have?
  23. 23.Round 44.89 to one decimal place. =
  24. 24.39 + 6 × 12 − 29 =
  25. 25.If 6 kg of rice costs ₹228, how many kg can you buy for ₹456?
  26. 26.5.45 + 1.3 =
  27. 27.36 ÷ 4 × 9 + 3 =
  28. 28.The HCF of two numbers is 3 and their LCM is 42. One of the numbers is 21. What is the other number?
  29. 29.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  30. 30.44 + 10 × 6 − 13 =
  31. 31.The ratio of boys to girls in a class is 9 : 4. There are 81 boys. How many girls are there?
  32. 32.11 : 10 = 33 : ?
  33. 33.7/9 × 1/7 =
  34. 34.The HCF of two numbers is 3 and their LCM is 189. One of the numbers is 27. What is the other number?
  35. 35.32 ÷ 4 × 8 + 24 =
  36. 36.Vivaan takes 60 seconds and Manav takes 48 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?
  37. 37.Which of these numbers divides exactly by 4? (a) 2085 (b) 9164 (c) 5065 (d) 2850
  38. 38.Which is closest to 196 × 20? (Round each number first.) (a) 400 (b) 4000 (c) 40000 (d) 8000
  39. 39.Which of these numbers divides exactly by 4? (a) 2287 (b) 5436 (c) 6798 (d) 3895
  40. 40.Which of these numbers divides exactly by 3? (a) 9818 (b) 7662 (c) 7990 (d) 4033

Answer key

  1. 6
  2. 22
  3. 27
  4. 16
  5. 31
  6. 2
  7. 69
  8. 120
  9. 3608
  10. 4
  11. 39
  12. 8512
  13. 322
  14. 450
  15. 5
  16. 32
  17. 63
  18. 8
  19. 40
  20. 3321
  21. 320
  22. 4
  23. 44.9
  24. 82
  25. 12
  26. 6.75
  27. 84
  28. 6
  29. 64
  30. 91
  31. 36
  32. 30
  33. 1/9
  34. 21
  35. 88
  36. 240
  37. 9164
  38. 4000
  39. 5436
  40. 7662

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