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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 740 · 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.(15 + 10) × 5 − 18 =
  2. 2.Three temple bells ring every 6, 24 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.Three temple bells ring every 5, 15 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.Round 95.68 to one decimal place. =
  5. 5.Divide ₹105 between Rohan and Aarav in the ratio 1 : 2. How much does Rohan get (in ₹)?
  6. 6.What is the smallest number you must add to 453 so that it divides exactly by 12?
  7. 7.Two tanks hold 60 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  8. 8.Find the LCM of 5, 4 and 6.
  9. 9.Three temple bells ring every 8, 4 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  10. 10.A car goes 51 km on 3 litres of petrol. How far can it go on 10 litres (in km)?
  11. 11.Write 7/10 as a percent.
  12. 12.A hostel has enough food for 3 students for 10 days. How many days will the same food last for 5 students?
  13. 13.Find the LCM of 4, 3 and 9.
  14. 14.The HCF of two numbers is 5 and their LCM is 105. One of the numbers is 15. What is the other number?
  15. 15.What is 6/7 of ₹105?
  16. 16.Three temple bells ring every 8, 4 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  17. 17.What is the smallest number you must add to 225 so that it divides exactly by 11?
  18. 18.What is the smallest number you must add to 467 so that it divides exactly by 4?
  19. 19.What is the smallest number you must add to 670 so that it divides exactly by 3?
  20. 20.Find the LCM of 36 and 8.
  21. 21.What percent of 500 is 495?
  22. 22.Which is closest to 2401 ÷ 29? (a) 800 (b) 40 (c) 80 (d) 160
  23. 23.3/4 of 12 + 5 × 6 =
  24. 24.Round 66173 to the nearest hundred.
  25. 25.A hostel has enough food for 12 students for 21 days. How many days will the same food last for 21 students?
  26. 26.(7 + 19) × 2 − 22 =
  27. 27.Find the LCM of 3, 14 and 9.
  28. 28.55 − 15 ÷ 5 × 8 =
  29. 29.Two tanks hold 60 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.(9 + 8) × 9 − 12 =
  31. 31.Which is closest to 1496 ÷ 51? (a) 30 (b) 300 (c) 15 (d) 60
  32. 32.What percent of 40 is 4?
  33. 33.Rohan scored 2 marks out of 40 in a test. What percentage did Rohan score?
  34. 34.Find the HCF of 48 and 84.
  35. 35.The HCF of two numbers is 5 and their LCM is 120. One of the numbers is 15. What is the other number?
  36. 36.4 × (10 − 3) + 35 ÷ 7 =
  37. 37.Find the LCM of 48 and 42.
  38. 38.Which is closest to 796 + 398 + 399? (a) 1800 (b) 1600 (c) 1500 (d) 1700
  39. 39.Find the HCF of 117 and 26.
  40. 40.How many factors does 56 have?

Answer key

  1. 107
  2. 120
  3. 45
  4. 95.7
  5. 35
  6. 3
  7. 30
  8. 60
  9. 40
  10. 170
  11. 70
  12. 6
  13. 36
  14. 35
  15. 90
  16. 24
  17. 6
  18. 1
  19. 2
  20. 72
  21. 99
  22. 80
  23. 39
  24. 66200
  25. 12
  26. 30
  27. 126
  28. 31
  29. 20
  30. 141
  31. 30
  32. 10
  33. 5
  34. 12
  35. 40
  36. 33
  37. 336
  38. 1600
  39. 13
  40. 8

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