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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 115 · 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.Which is closest to 2702 ÷ 29? (a) 900 (b) 180 (c) 45 (d) 90
  2. 2.How many factors does 55 have?
  3. 3.How many factors does 57 have?
  4. 4.5% of a number is 5. What is the number?
  5. 5.What is 1/8 of 240 km?
  6. 6.Which is closest to 299 + 797 + 896? (a) 2000 (b) 1900 (c) 2200 (d) 2100
  7. 7.Rahul scored 10 marks out of 20 in a test. What percentage did Rahul score?
  8. 8.Which is closest to 295 + 296 + 601? (a) 1100 (b) 1300 (c) 1200 (d) 1400
  9. 9.29.6 ÷ 8 =
  10. 10.Round 62.68 to one decimal place. =
  11. 11.Two tanks hold 45 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.Round 30020 to the nearest thousand.
  13. 13.10 : 3 = 40 : ?
  14. 14.A hall floor is 240 cm long and 200 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  15. 15.Tara takes 45 seconds and Sneha takes 36 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  16. 16.8.2 × 4 =
  17. 17.The ratio of boys to girls in a class is 9 : 7. There are 90 boys. How many girls are there?
  18. 18.A hall floor is 160 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  19. 19.40% of a number is 26. What is the number?
  20. 20.Round 13.91 to one decimal place. =
  21. 21.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 3, 4 or 10.
  22. 22.Which is closest to 399 + 301 + 195? (a) 1100 (b) 800 (c) 900 (d) 1000
  23. 23.12 + 2 × 10 − 1 =
  24. 24.5 : 6 = 10 : ?
  25. 25.What is 5/9 of 153 litres?
  26. 26.Write 1/4 as a percent.
  27. 27.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  28. 28.How many factors does 88 have?
  29. 29.Which of these numbers divides exactly by 11? (a) 9224 (b) 8142 (c) 6544 (d) 9460
  30. 30.Two tanks hold 50 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  31. 31.Which of these numbers divides exactly by 4? (a) 2377 (b) 4217 (c) 6090 (d) 5440
  32. 32.14 + 6 × 12 − 4 =
  33. 33.2 painters can paint a school in 18 days. How many days would 4 painters take, working at the same speed?
  34. 34.Which is closest to 1805 ÷ 31? (a) 60 (b) 30 (c) 120 (d) 600
  35. 35.Which of these numbers divides exactly by 8? (a) 5111 (b) 7502 (c) 7512 (d) 3623
  36. 36.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  37. 37.How many factors does 100 have?
  38. 38.Find the LCM of 2, 12 and 14.
  39. 39.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  40. 40.Find the HCF of 4 and 18.

Answer key

  1. 90
  2. 4
  3. 4
  4. 100
  5. 30
  6. 2000
  7. 50
  8. 1200
  9. 3.7
  10. 62.7
  11. 15
  12. 30000
  13. 12
  14. 30
  15. 180
  16. 32.8
  17. 70
  18. 24
  19. 65
  20. 13.9
  21. 62
  22. 900
  23. 31
  24. 12
  25. 85
  26. 25
  27. 80
  28. 8
  29. 9460
  30. 10
  31. 5440
  32. 82
  33. 9
  34. 60
  35. 7512
  36. 24
  37. 9
  38. 84
  39. 64
  40. 2

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