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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 355 · 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 60% of 265?
  2. 2.Three temple bells ring every 4, 12 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.What is the smallest number you must add to 602 so that it divides exactly by 8?
  4. 4.What is the smallest number you must take away from 642 so that it divides exactly by 12?
  5. 5.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  6. 6.(3 + 16) × 8 − 24 =
  7. 7.Write 3/20 as a percent.
  8. 8.Find the LCM of 6, 2 and 11.
  9. 9.Round 14.82 to one decimal place. =
  10. 10.2/3 × 5/10 =
  11. 11.Three temple bells ring every 4, 6 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.77 ÷ 7 × 4 + 4 =
  13. 13.Isha scored 6 marks out of 40 in a test. What percentage did Isha score?
  14. 14.Find the LCM of 4, 3 and 5.
  15. 15.What percent of 250 is 100?
  16. 16.Arjun takes 40 seconds and Ananya takes 90 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?
  17. 17.The HCF of two numbers is 2 and their LCM is 144. One of the numbers is 16. What is the other number?
  18. 18.21 − 20 ÷ 5 × 3 =
  19. 19.Three temple bells ring every 30, 5 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  20. 20.Which of these numbers divides exactly by 6? (a) 4427 (b) 8905 (c) 8636 (d) 1356
  21. 21.Find the HCF of 91 and 117.
  22. 22.Round 40.13 to one decimal place. =
  23. 23.Find the smallest number bigger than 15 that leaves a remainder of 6 when divided by 8, 15 or 10.
  24. 24.6/11 + 5/10 =
  25. 25.2/3 + 1/2 =
  26. 26.How many factors does 93 have?
  27. 27.Find the LCM of 9, 3 and 11.
  28. 28.Find the LCM of 2, 12 and 13.
  29. 29.What percent of 20 is 12?
  30. 30.Write 1/2 as a percent.
  31. 31.How many factors does 92 have?
  32. 32.How many factors does 76 have?
  33. 33.46 − 54 ÷ 6 × 2 =
  34. 34.What is the smallest number you must add to 443 so that it divides exactly by 6?
  35. 35.A hall floor is 360 cm long and 225 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  36. 36.Tara takes 54 seconds and Ananya takes 72 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.What percent of 40 is 2?
  38. 38.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 3, 10 or 8.
  39. 39.(8 + 5) × 7 − 23 =
  40. 40.Which is closest to 795 + 398 + 97? (a) 1400 (b) 1500 (c) 1300 (d) 1200

Answer key

  1. 159
  2. 24
  3. 6
  4. 6
  5. 81
  6. 128
  7. 15
  8. 66
  9. 14.8
  10. 1/3
  11. 60
  12. 48
  13. 15
  14. 60
  15. 40
  16. 360
  17. 18
  18. 9
  19. 90
  20. 1356
  21. 13
  22. 40.1
  23. 126
  24. 23/22
  25. 7/6
  26. 4
  27. 99
  28. 156
  29. 60
  30. 50
  31. 6
  32. 6
  33. 28
  34. 1
  35. 40
  36. 216
  37. 5
  38. 122
  39. 68
  40. 1300

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