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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 160 · 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.A hall floor is 150 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  2. 2.60% of a number is 297. What is the number?
  3. 3.Find the LCM of 11, 5 and 10.
  4. 4.7/11 × 6/8 =
  5. 5.45 + 6 × 3 − 11 =
  6. 6.The HCF of two numbers is 8 and their LCM is 80. One of the numbers is 40. What is the other number?
  7. 7.Round 54.08 to one decimal place. =
  8. 8.Which is closest to 1608 ÷ 39? (a) 80 (b) 40 (c) 20 (d) 400
  9. 9.4/5 + 4/8 =
  10. 10.Write 3/10 as a percent.
  11. 11.Divide ₹374 between Sneha and Priya in the ratio 2 : 9. How much does Sneha get (in ₹)?
  12. 12.What is the smallest number you must add to 869 so that it divides exactly by 7?
  13. 13.How many factors does 61 have?
  14. 14.The HCF of two numbers is 2 and their LCM is 56. One of the numbers is 14. What is the other number?
  15. 15.12% of a number is 9. What is the number?
  16. 16.7.12 + 8.6 =
  17. 17.What is 15% of 440?
  18. 18.(17 + 13) × 8 − 15 =
  19. 19.11 : 5 = 77 : ?
  20. 20.If 9 pencil boxes cost ₹189, how much do 18 pencil boxes cost (in ₹)?
  21. 21.Three temple bells ring every 6, 5 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.2/8 + 8/12 =
  23. 23.Which of these numbers divides exactly by 8? (a) 2305 (b) 4527 (c) 9664 (d) 1410
  24. 24.Find the HCF of 27 and 36.
  25. 25.How many factors does 74 have?
  26. 26.Karan scored 16 marks out of 20 in a test. What percentage did Karan score?
  27. 27.What percent of 80 is 12?
  28. 28.Divide ₹378 between Nisha and Ananya in the ratio 5 : 2. How much does Ananya get (in ₹)?
  29. 29.What percent of 80 is 24?
  30. 30.6.42 + 8.9 =
  31. 31.4/5 of 25 + 8 × 5 =
  32. 32.1/6 of 36 + 9 × 6 =
  33. 33.40 − 45 ÷ 9 × 3 =
  34. 34.7.95 + 1.4 =
  35. 35.A hall floor is 200 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  36. 36.75% of a number is 207. What is the number?
  37. 37.Find the HCF of 98 and 70.
  38. 38.Which of these numbers divides exactly by 4? (a) 5886 (b) 5631 (c) 2749 (d) 2672
  39. 39.What is the smallest number you must add to 838 so that it divides exactly by 8?
  40. 40.The ratio of boys to girls in a class is 4 : 5. There are 16 boys. How many girls are there?

Answer key

  1. 6
  2. 495
  3. 110
  4. 21/44
  5. 52
  6. 16
  7. 54.1
  8. 40
  9. 13/10
  10. 30
  11. 68
  12. 6
  13. 2
  14. 8
  15. 75
  16. 15.72
  17. 66
  18. 225
  19. 35
  20. 378
  21. 90
  22. 11/12
  23. 9664
  24. 9
  25. 4
  26. 80
  27. 15
  28. 108
  29. 30
  30. 15.32
  31. 60
  32. 60
  33. 25
  34. 9.35
  35. 12
  36. 276
  37. 14
  38. 2672
  39. 2
  40. 20

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