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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 345 · 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.Three temple bells ring every 4, 10 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  2. 2.Divide ₹252 between Kavya and Nisha in the ratio 5 : 2. How much does Nisha get (in ₹)?
  3. 3.6.7 × 8 =
  4. 4.Which is closest to 95 + 697 + 297? (a) 1000 (b) 1300 (c) 1200 (d) 1100
  5. 5.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  6. 6.Which of these numbers divides exactly by 6? (a) 6117 (b) 4875 (c) 1361 (d) 5418
  7. 7.The ratio of boys to girls in a class is 8 : 5. There are 24 boys. How many girls are there?
  8. 8.What is the smallest number you must add to 621 so that it divides exactly by 8?
  9. 9.What is the smallest number you must take away from 152 so that it divides exactly by 3?
  10. 10.22 + 7 × 6 − 14 =
  11. 11.60% of a number is 132. What is the number?
  12. 12.What is the smallest number you must add to 425 so that it divides exactly by 12?
  13. 13.Divide ₹333 between Kabir and Sneha in the ratio 2 : 7. How much does Kabir get (in ₹)?
  14. 14.What is the smallest number you must add to 819 so that it divides exactly by 4?
  15. 15.Write 3/20 as a percent.
  16. 16.What is the smallest number you must take away from 787 so that it divides exactly by 6?
  17. 17.Find the LCM of 3, 15 and 9.
  18. 18.6 × (13 − 3) + 14 ÷ 2 =
  19. 19.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 5 or 3.
  20. 20.Three temple bells ring every 6, 10 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.The ratio of boys to girls in a class is 2 : 5. There are 12 boys. How many girls are there?
  22. 22.Round 80.93 to one decimal place. =
  23. 23.Which of these numbers divides exactly by 3? (a) 3931 (b) 2769 (c) 6158 (d) 5300
  24. 24.3.6 × 8 =
  25. 25.1.4 × 2 =
  26. 26.24.6 ÷ 3 =
  27. 27.8 : 13 = 32 : ?
  28. 28.Find the HCF of 10 and 8.
  29. 29.22 + 5 × 7 − 19 =
  30. 30.The ratio of boys to girls in a class is 7 : 4. There are 21 boys. How many girls are there?
  31. 31.2 : 15 = 4 : ?
  32. 32.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 10, 12 or 3.
  33. 33.Which of these numbers divides exactly by 8? (a) 2003 (b) 5357 (c) 2665 (d) 7648
  34. 34.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  35. 35.Three temple bells ring every 6, 8 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.4/6 − 2/8 =
  37. 37.What is the smallest number you must add to 710 so that it divides exactly by 4?
  38. 38.Find the HCF of 12 and 9.
  39. 39.9 × (10 − 5) + 22 ÷ 2 =
  40. 40.Two tanks hold 360 litres and 315 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?

Answer key

  1. 60
  2. 72
  3. 53.6
  4. 1100
  5. 75
  6. 5418
  7. 15
  8. 3
  9. 2
  10. 50
  11. 220
  12. 7
  13. 74
  14. 1
  15. 15
  16. 1
  17. 45
  18. 67
  19. 16
  20. 60
  21. 30
  22. 80.9
  23. 2769
  24. 28.8
  25. 2.8
  26. 8.2
  27. 52
  28. 2
  29. 38
  30. 12
  31. 30
  32. 62
  33. 7648
  34. 12
  35. 72
  36. 5/12
  37. 2
  38. 3
  39. 56
  40. 45

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