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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 575 · 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. 1.3/5 of 45 + 3 × 2 =
  2. 2.Find the HCF of 90 and 20.
  3. 3.What percent of 200 is 130?
  4. 4.The HCF of two numbers is 3 and their LCM is 60. One of the numbers is 15. What is the other number?
  5. 5.What is 1/8 of 240 km?
  6. 6.8.4 × 2 =
  7. 7.If 2 erasers cost ₹36, how much do 3 erasers cost (in ₹)?
  8. 8.A hostel has enough food for 6 students for 18 days. How many days will the same food last for 9 students?
  9. 9.Find the LCM of 25 and 45.
  10. 10.9.92 + 6.5 =
  11. 11.Find the LCM of 8 and 36.
  12. 12.Round 2319 to the nearest ten.
  13. 13.46.8 ÷ 6 =
  14. 14.What is 15% of 500?
  15. 15.Three temple bells ring every 15, 12 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  16. 16.Find the smallest number bigger than 6 that leaves a remainder of 1 when divided by 5, 6 or 4.
  17. 17.12 painters can paint a school in 15 days. How many days would 6 painters take, working at the same speed?
  18. 18.Find the LCM of 6, 8 and 15.
  19. 19.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?
  20. 20.Round 54319 to the nearest ten.
  21. 21.The HCF of two numbers is 7 and their LCM is 168. One of the numbers is 21. What is the other number?
  22. 22.Find the LCM of 3, 4 and 5.
  23. 23.Write 31/50 as a percent.
  24. 24.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 3, 8 or 5.
  25. 25.How many factors does 98 have?
  26. 26.2 × (28 − 19) + 8 ÷ 2 =
  27. 27.Meera scored 36 marks out of 40 in a test. What percentage did Meera score?
  28. 28.Find the LCM of 6, 12 and 14.
  29. 29.Divide ₹70 between Diya and Dev in the ratio 4 : 1. How much does Diya get (in ₹)?
  30. 30.What percent of 50 is 26?
  31. 31.Two tanks hold 100 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  32. 32.5 : 13 = 20 : ?
  33. 33.5 : 8 = 30 : ?
  34. 34.What is 3/5 of 70 km?
  35. 35.Aarav scored 37 marks out of 50 in a test. What percentage did Aarav score?
  36. 36.What is 1/7 of 133 km?
  37. 37.What is the smallest number you must take away from 233 so that it divides exactly by 8?
  38. 38.3/4 − 5/8 =
  39. 39.45 − 42 ÷ 7 × 7 =
  40. 40.92 − 16 ÷ 2 × 7 =

Answer key

  1. 33
  2. 10
  3. 65
  4. 12
  5. 30
  6. 16.8
  7. 54
  8. 12
  9. 225
  10. 16.42
  11. 72
  12. 2320
  13. 7.8
  14. 75
  15. 60
  16. 61
  17. 30
  18. 120
  19. 6
  20. 54320
  21. 56
  22. 60
  23. 62
  24. 121
  25. 6
  26. 22
  27. 90
  28. 84
  29. 56
  30. 52
  31. 50
  32. 52
  33. 48
  34. 42
  35. 74
  36. 19
  37. 1
  38. 1/8
  39. 3
  40. 36

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