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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 826 · 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.The ratio of boys to girls in a class is 8 : 9. There are 40 boys. How many girls are there?
  2. 2.What percent of 40 is 26?
  3. 3.2.9 × 3 =
  4. 4.Find the HCF of 10 and 6.
  5. 5.If 10 notebooks cost ₹550, how much do 5 notebooks cost (in ₹)?
  6. 6.What is the smallest number you must add to 106 so that it divides exactly by 12?
  7. 7.Find the HCF of 27 and 45.
  8. 8.Find the LCM of 9 and 7.
  9. 9.Find the HCF of 33 and 88.
  10. 10.What is the smallest number you must add to 293 so that it divides exactly by 12?
  11. 11.What is the smallest number you must add to 900 so that it divides exactly by 11?
  12. 12.Divide ₹270 between Manav and Kavya in the ratio 4 : 5. How much does Kavya get (in ₹)?
  13. 13.Find the LCM of 3 and 7.
  14. 14.Find the LCM of 5, 8 and 10.
  15. 15.Three temple bells ring every 24, 12 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  16. 16.If 2 kg of rice costs ₹170, how many kg can you buy for ₹340?
  17. 17.19.2 ÷ 4 =
  18. 18.What is 5/8 of 72 litres?
  19. 19.21 + 11 × 7 − 18 =
  20. 20.3/7 × 1/8 =
  21. 21.If 8 kg of rice costs ₹304, how many kg can you buy for ₹114?
  22. 22.The ratio of boys to girls in a class is 8 : 7. There are 80 boys. How many girls are there?
  23. 23.What is 40% of 125?
  24. 24.Find the LCM of 5, 10 and 14.
  25. 25.If 2 cricket balls cost ₹28, how much do 18 cricket balls cost (in ₹)?
  26. 26.The ratio of boys to girls in a class is 6 : 7. There are 24 boys. How many girls are there?
  27. 27.What is the smallest number you must take away from 590 so that it divides exactly by 11?
  28. 28.A hall floor is 120 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  29. 29.What percent of 20 is 15?
  30. 30.What is the smallest number you must take away from 200 so that it divides exactly by 12?
  31. 31.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  32. 32.Find the HCF of 65 and 26.
  33. 33.What percent of 50 is 22?
  34. 34.150% of a number is 555. What is the number?
  35. 35.What is the smallest number you must take away from 759 so that it divides exactly by 8?
  36. 36.15 ÷ 5 × 5 + 11 =
  37. 37.What is 2/7 of 112 students?
  38. 38.How many factors does 50 have?
  39. 39.Write 1/2 as a percent.
  40. 40.3/11 + 2/9 =

Answer key

  1. 45
  2. 65
  3. 8.7
  4. 2
  5. 275
  6. 2
  7. 9
  8. 63
  9. 11
  10. 7
  11. 2
  12. 150
  13. 21
  14. 40
  15. 120
  16. 4
  17. 4.8
  18. 45
  19. 80
  20. 3/56
  21. 3
  22. 70
  23. 50
  24. 70
  25. 252
  26. 28
  27. 7
  28. 30
  29. 75
  30. 8
  31. 64
  32. 13
  33. 44
  34. 370
  35. 7
  36. 26
  37. 32
  38. 6
  39. 50
  40. 49/99

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