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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 585 · 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. 1.1/5 of 15 + 4 × 3 =
  2. 2.A car goes 144 km on 9 litres of petrol. How far can it go on 21 litres (in km)?
  3. 3.The HCF of two numbers is 6 and their LCM is 36. One of the numbers is 18. What is the other number?
  4. 4.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 9, 15 or 4.
  5. 5.The HCF of two numbers is 7 and their LCM is 147. One of the numbers is 49. What is the other number?
  6. 6.Write 3/10 as a percent.
  7. 7.How many factors does 47 have?
  8. 8.Find the LCM of 11, 7 and 14.
  9. 9.If 6 kg of rice costs ₹210, how many kg can you buy for ₹140?
  10. 10.Round 33.29 to one decimal place. =
  11. 11.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  12. 12.What percent of 25 is 14?
  13. 13.Write 16/25 as a percent.
  14. 14.The HCF of two numbers is 9 and their LCM is 252. One of the numbers is 36. What is the other number?
  15. 15.What is 30% of 50?
  16. 16.The HCF of two numbers is 4 and their LCM is 112. One of the numbers is 28. What is the other number?
  17. 17.4 × (18 − 6) + 33 ÷ 3 =
  18. 18.Find the LCM of 25 and 15.
  19. 19.What is 1/2 of ₹34?
  20. 20.2.22 + 2.4 =
  21. 21.What is 20% of 565?
  22. 22.Find the LCM of 3, 11 and 2.
  23. 23.What is 5% of 560?
  24. 24.Find the HCF of 32 and 20.
  25. 25.Three temple bells ring every 6, 4 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  26. 26.7 : 11 = 28 : ?
  27. 27.What is 40% of 85?
  28. 28.Which is closest to 102 + 600 + 699? (a) 1400 (b) 1300 (c) 1500 (d) 1600
  29. 29.What percent of 25 is 4?
  30. 30.Find the LCM of 18 and 10.
  31. 31.4.5 × 9 =
  32. 32.How many factors does 92 have?
  33. 33.5/8 + 1/2 =
  34. 34.Find the LCM of 3, 11 and 15.
  35. 35.A hostel has enough food for 11 students for 10 days. How many days will the same food last for 22 students?
  36. 36.What is the smallest number you must add to 766 so that it divides exactly by 11?
  37. 37.The HCF of two numbers is 3 and their LCM is 168. One of the numbers is 24. What is the other number?
  38. 38.Which is closest to 3504 ÷ 49? (a) 700 (b) 70 (c) 140 (d) 35
  39. 39.Which is closest to 1493 ÷ 49? (a) 300 (b) 30 (c) 15 (d) 60
  40. 40.What is the smallest number you must take away from 438 so that it divides exactly by 13?

Answer key

  1. 15
  2. 336
  3. 12
  4. 181
  5. 21
  6. 30
  7. 2
  8. 154
  9. 4
  10. 33.3
  11. 28
  12. 56
  13. 64
  14. 63
  15. 15
  16. 16
  17. 59
  18. 75
  19. 17
  20. 4.62
  21. 113
  22. 66
  23. 28
  24. 4
  25. 60
  26. 44
  27. 34
  28. 1400
  29. 16
  30. 90
  31. 40.5
  32. 6
  33. 9/8
  34. 165
  35. 5
  36. 4
  37. 21
  38. 70
  39. 30
  40. 9

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