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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 325 · 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 4 when divided by 5, 9 or 15.
  2. 2.6 × (25 − 15) + 55 ÷ 5 =
  3. 3.Three temple bells ring every 4, 20 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.2.9 × 5 =
  5. 5.(12 + 10) × 7 − 11 =
  6. 6.Three temple bells ring every 4, 6 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  7. 7.34 + 5 × 9 − 31 =
  8. 8.Three temple bells ring every 15, 18 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.Which is closest to 98 + 498 + 802? (a) 1400 (b) 1600 (c) 1500 (d) 1300
  10. 10.8 × (28 − 17) + 14 ÷ 2 =
  11. 11.1.04 + 3.1 =
  12. 12.Dev takes 54 seconds and Farhan takes 30 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?
  13. 13.Which is closest to 396 + 605 + 401? (a) 1600 (b) 1300 (c) 1500 (d) 1400
  14. 14.Rahul takes 90 seconds and Rohan takes 54 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.Round 90.29 to one decimal place. =
  16. 16.Find the third proportional to 4 and 12 (that is, 4 : 12 = 12 : ?).
  17. 17.A hall floor is 135 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  18. 18.Find the HCF of 24 and 28.
  19. 19.27.9 ÷ 3 =
  20. 20.7 : 14 = 42 : ?
  21. 21.Which is closest to 1491 ÷ 51? (a) 15 (b) 60 (c) 300 (d) 30
  22. 22.What percent of 25 is 1?
  23. 23.Find the LCM of 6, 7 and 4.
  24. 24.A hostel has enough food for 9 students for 28 days. How many days will the same food last for 14 students?
  25. 25.Three temple bells ring every 20, 10 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  26. 26.The HCF of two numbers is 7 and their LCM is 441. One of the numbers is 49. What is the other number?
  27. 27.Find the LCM of 13, 2 and 7.
  28. 28.1.62 + 3.2 =
  29. 29.What is 1/3 of ₹78?
  30. 30.Which is closest to 804 + 200 + 295? (a) 1200 (b) 1500 (c) 1400 (d) 1300
  31. 31.The HCF of two numbers is 6 and their LCM is 270. One of the numbers is 54. What is the other number?
  32. 32.Find the HCF of 35 and 63.
  33. 33.9.4 × 8 =
  34. 34.Which of these numbers divides exactly by 4? (a) 2771 (b) 7316 (c) 9937 (d) 3027
  35. 35.What is the smallest number you must add to 571 so that it divides exactly by 12?
  36. 36.What is 75% of 152?
  37. 37.How many factors does 36 have?
  38. 38.Find the HCF of 20 and 35.
  39. 39.Find the LCM of 45 and 35.
  40. 40.Which is closest to 1402 ÷ 21? (a) 70 (b) 700 (c) 140 (d) 35

Answer key

  1. 49
  2. 71
  3. 60
  4. 14.5
  5. 143
  6. 36
  7. 48
  8. 90
  9. 1400
  10. 95
  11. 4.14
  12. 270
  13. 1400
  14. 270
  15. 90.3
  16. 36
  17. 6
  18. 4
  19. 9.3
  20. 84
  21. 30
  22. 4
  23. 84
  24. 18
  25. 60
  26. 63
  27. 182
  28. 4.82
  29. 26
  30. 1300
  31. 30
  32. 7
  33. 75.2
  34. 7316
  35. 5
  36. 114
  37. 9
  38. 5
  39. 315
  40. 70

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