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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 988 · 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 300 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  2. 2.If 3 cricket balls cost ₹21, how much do 12 cricket balls cost (in ₹)?
  3. 3.Two tanks hold 100 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  4. 4.14 − 24 ÷ 8 × 3 =
  5. 5.Three temple bells ring every 8, 10 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.What percent of 20 is 14?
  7. 7.Find the LCM of 8 and 7.
  8. 8.Which of these numbers divides exactly by 3? (a) 1482 (b) 3587 (c) 6059 (d) 3230
  9. 9.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 15, 3 or 4.
  10. 10.Three temple bells ring every 15, 4 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.What is 1/2 of ₹10?
  12. 12.The ratio of boys to girls in a class is 8 : 5. There are 40 boys. How many girls are there?
  13. 13.What is the smallest number you must add to 913 so that it divides exactly by 8?
  14. 14.Find the LCM of 11, 2 and 4.
  15. 15.What percent of 200 is 100?
  16. 16.What is the smallest number you must take away from 645 so that it divides exactly by 8?
  17. 17.Ishaan scored 4 marks out of 20 in a test. What percentage did Ishaan score?
  18. 18.32 + 6 × 11 − 27 =
  19. 19.1/3 − 1/7 =
  20. 20.Find the HCF of 30 and 50.
  21. 21.Three temple bells ring every 9, 8 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.7.62 + 6.6 =
  23. 23.A hall floor is 100 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  24. 24.Three temple bells ring every 15, 9 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  25. 25.Find the LCM of 30 and 18.
  26. 26.What is the smallest number you must take away from 836 so that it divides exactly by 8?
  27. 27.If 5 kites cost ₹280, how much do 11 kites cost (in ₹)?
  28. 28.Round 29.92 to one decimal place. =
  29. 29.Round 98.18 to one decimal place. =
  30. 30.Which is closest to 801 + 699 + 701? (a) 2400 (b) 2300 (c) 2100 (d) 2200
  31. 31.Find the LCM of 27 and 6.
  32. 32.What percent of 40 is 8?
  33. 33.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 8, 3 or 10.
  34. 34.A hall floor is 315 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  35. 35.Which is closest to 496 × 28? (Round each number first.) (a) 150000 (b) 1500 (c) 30000 (d) 15000
  36. 36.Which is closest to 406 ÷ 21? (a) 40 (b) 10 (c) 200 (d) 20
  37. 37.Which is closest to 204 + 496 + 201? (a) 800 (b) 900 (c) 1000 (d) 1100
  38. 38.12 + 11 × 12 − 1 =
  39. 39.Which is closest to 605 + 703 + 499? (a) 1900 (b) 2000 (c) 1700 (d) 1800
  40. 40.If 3 kites cost ₹156, how much do 6 kites cost (in ₹)?

Answer key

  1. 10
  2. 84
  3. 25
  4. 5
  5. 120
  6. 70
  7. 56
  8. 1482
  9. 62
  10. 60
  11. 5
  12. 25
  13. 7
  14. 44
  15. 50
  16. 5
  17. 20
  18. 71
  19. 4/21
  20. 10
  21. 72
  22. 14.22
  23. 20
  24. 90
  25. 90
  26. 4
  27. 616
  28. 29.9
  29. 98.2
  30. 2200
  31. 54
  32. 20
  33. 121
  34. 14
  35. 15000
  36. 20
  37. 900
  38. 143
  39. 1800
  40. 312

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