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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 326 · 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.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 4, 15 or 9.
  2. 2.6.05 + 8.8 =
  3. 3.A hostel has enough food for 2 students for 24 days. How many days will the same food last for 4 students?
  4. 4.What percent of 20 is 1?
  5. 5.What is the smallest number you must add to 466 so that it divides exactly by 12?
  6. 6.Three temple bells ring every 30, 9 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  7. 7.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  8. 8.5/6 × 1/2 =
  9. 9.Round 55.87 to one decimal place. =
  10. 10.12% of a number is 51. What is the number?
  11. 11.Which of these numbers divides exactly by 4? (a) 8809 (b) 2553 (c) 1824 (d) 5445
  12. 12.What is the smallest number you must take away from 933 so that it divides exactly by 13?
  13. 13.Three temple bells ring every 24, 10 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.(11 + 3) × 4 − 29 =
  15. 15.27 + 9 × 5 − 5 =
  16. 16.1/3 of 9 + 2 × 8 =
  17. 17.Round 64523 to the nearest thousand.
  18. 18.Write 9/10 as a percent.
  19. 19.Sneha scored 43 marks out of 50 in a test. What percentage did Sneha score?
  20. 20.29 + 9 × 10 − 29 =
  21. 21.What is the smallest number you must take away from 257 so that it divides exactly by 3?
  22. 22.23 − 16 ÷ 4 × 3 =
  23. 23.Round 27.39 to one decimal place. =
  24. 24.24 − 15 ÷ 5 × 6 =
  25. 25.Manav scored 52 marks out of 80 in a test. What percentage did Manav score?
  26. 26.What is the smallest number you must add to 509 so that it divides exactly by 9?
  27. 27.Find the smallest number bigger than 6 that leaves a remainder of 2 when divided by 6, 4 or 3.
  28. 28.10 painters can paint a school in 10 days. How many days would 20 painters take, working at the same speed?
  29. 29.Three temple bells ring every 20, 15 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  30. 30.What is 4/7 of 168 kg?
  31. 31.3 painters can paint a school in 27 days. How many days would 9 painters take, working at the same speed?
  32. 32.Find the LCM of 2, 13 and 5.
  33. 33.1/2 + 6/9 =
  34. 34.The HCF of two numbers is 2 and their LCM is 60. One of the numbers is 10. What is the other number?
  35. 35.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 10, 15 or 3.
  36. 36.What is the smallest number you must add to 686 so that it divides exactly by 12?
  37. 37.8 ÷ 4 × 6 + 24 =
  38. 38.Three temple bells ring every 20, 8 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  39. 39.How many factors does 39 have?
  40. 40.Find the LCM of 35 and 40.

Answer key

  1. 182
  2. 14.85
  3. 12
  4. 5
  5. 2
  6. 90
  7. 128
  8. 5/12
  9. 55.9
  10. 425
  11. 1824
  12. 10
  13. 120
  14. 27
  15. 67
  16. 19
  17. 65000
  18. 90
  19. 86
  20. 90
  21. 2
  22. 11
  23. 27.4
  24. 6
  25. 65
  26. 4
  27. 14
  28. 5
  29. 120
  30. 96
  31. 9
  32. 130
  33. 7/6
  34. 12
  35. 32
  36. 10
  37. 36
  38. 120
  39. 4
  40. 280

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