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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 82 · 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.Two tanks hold 60 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  2. 2.Find the LCM of 4 and 18.
  3. 3.If 2 pencil boxes cost ₹68, how much do 11 pencil boxes cost (in ₹)?
  4. 4.6 painters can paint a school in 22 days. How many days would 22 painters take, working at the same speed?
  5. 5.10% of a number is 19. What is the number?
  6. 6.What is 12% of 475?
  7. 7.What percent of 50 is 4?
  8. 8.Find the LCM of 4, 11 and 5.
  9. 9.Which is closest to 296 × 62? (Round each number first.) (a) 36000 (b) 18000 (c) 1800 (d) 180000
  10. 10.150% of a number is 12. What is the number?
  11. 11.Write 1/5 as a percent.
  12. 12.Find the LCM of 9, 12 and 3.
  13. 13.The HCF of two numbers is 6 and their LCM is 72. One of the numbers is 24. What is the other number?
  14. 14.32.8 ÷ 8 =
  15. 15.32 ÷ 4 × 9 + 28 =
  16. 16.What is the smallest number you must take away from 546 so that it divides exactly by 4?
  17. 17.Find the HCF of 96 and 36.
  18. 18.The HCF of two numbers is 6 and their LCM is 168. One of the numbers is 24. What is the other number?
  19. 19.Find the LCM of 30 and 42.
  20. 20.Find the HCF of 30 and 24.
  21. 21.What is the smallest number you must add to 781 so that it divides exactly by 8?
  22. 22.Which is closest to 3605 ÷ 41? (a) 180 (b) 90 (c) 900 (d) 45
  23. 23.How many factors does 38 have?
  24. 24.The HCF of two numbers is 8 and their LCM is 96. One of the numbers is 24. What is the other number?
  25. 25.What is 150% of 158?
  26. 26.Write 1/2 as a percent.
  27. 27.A hostel has enough food for 11 students for 10 days. How many days will the same food last for 5 students?
  28. 28.31 + 11 × 3 − 6 =
  29. 29.If 6 kg of rice costs ₹498, how many kg can you buy for ₹830?
  30. 30.3/5 × 1/6 =
  31. 31.What is the smallest number you must take away from 744 so that it divides exactly by 11?
  32. 32.2/5 of 50 + 2 × 6 =
  33. 33.If 5 pens cost ₹120, how much do 18 pens cost (in ₹)?
  34. 34.Divide ₹24 between Meera and Kavya in the ratio 1 : 3. How much does Meera get (in ₹)?
  35. 35.51 − 24 ÷ 8 × 7 =
  36. 36.Divide ₹304 between Diya and Manav in the ratio 7 : 9. How much does Diya get (in ₹)?
  37. 37.What is 10% of 240?
  38. 38.What is the smallest number you must add to 974 so that it divides exactly by 9?
  39. 39.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 4, 12 or 8.
  40. 40.Divide ₹450 between Diya and Pooja in the ratio 7 : 3. How much does Diya get (in ₹)?

Answer key

  1. 30
  2. 36
  3. 374
  4. 6
  5. 190
  6. 57
  7. 8
  8. 220
  9. 18000
  10. 8
  11. 20
  12. 36
  13. 18
  14. 4.1
  15. 100
  16. 2
  17. 12
  18. 42
  19. 210
  20. 6
  21. 3
  22. 90
  23. 4
  24. 32
  25. 237
  26. 50
  27. 22
  28. 58
  29. 10
  30. 1/10
  31. 7
  32. 32
  33. 432
  34. 6
  35. 30
  36. 133
  37. 24
  38. 7
  39. 25
  40. 315

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