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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 635 · 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 of these numbers divides exactly by 6? (a) 1198 (b) 5877 (c) 4888 (d) 3090
  2. 2.Sneha scored 20 marks out of 80 in a test. What percentage did Sneha score?
  3. 3.15 + 6 × 6 − 3 =
  4. 4.The ratio of boys to girls in a class is 1 : 8. There are 8 boys. How many girls are there?
  5. 5.5 painters can paint a school in 18 days. How many days would 18 painters take, working at the same speed?
  6. 6.5.1 ÷ 3 =
  7. 7.43 + 10 × 2 − 40 =
  8. 8.Tara scored 17 marks out of 25 in a test. What percentage did Tara score?
  9. 9.80% of a number is 372. What is the number?
  10. 10.Manav takes 30 seconds and Dev takes 54 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?
  11. 11.Find the LCM of 4 and 14.
  12. 12.3/5 × 1/6 =
  13. 13.(3 + 10) × 4 − 16 =
  14. 14.What is the smallest number you must add to 838 so that it divides exactly by 6?
  15. 15.How many factors does 12 have?
  16. 16.1/2 + 4/7 =
  17. 17.Round 68980 to the nearest hundred.
  18. 18.Which is closest to 604 × 81? (Round each number first.) (a) 4800 (b) 96000 (c) 480000 (d) 48000
  19. 19.What is the smallest number you must add to 935 so that it divides exactly by 6?
  20. 20.12 + 10 × 10 − 1 =
  21. 21.How many factors does 79 have?
  22. 22.Find the HCF of 28 and 32.
  23. 23.What is the smallest number you must take away from 647 so that it divides exactly by 12?
  24. 24.2/3 − 4/7 =
  25. 25.8 : 9 = 48 : ?
  26. 26.5/11 − 1/3 =
  27. 27.48 ÷ 6 × 5 + 16 =
  28. 28.What is the smallest number you must take away from 596 so that it divides exactly by 12?
  29. 29.Write 7/50 as a percent.
  30. 30.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  31. 31.Find the HCF of 105 and 30.
  32. 32.How many factors does 31 have?
  33. 33.9/10 − 1/5 =
  34. 34.Which is closest to 203 + 504 + 198? (a) 1000 (b) 900 (c) 800 (d) 1100
  35. 35.10 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
  36. 36.29.6 ÷ 4 =
  37. 37.What is the smallest number you must add to 614 so that it divides exactly by 3?
  38. 38.Which of these numbers divides exactly by 3? (a) 3596 (b) 1438 (c) 6812 (d) 1731
  39. 39.6.7 × 7 =
  40. 40.A car goes 176 km on 8 litres of petrol. How far can it go on 38 litres (in km)?

Answer key

  1. 3090
  2. 25
  3. 48
  4. 64
  5. 5
  6. 1.7
  7. 23
  8. 68
  9. 465
  10. 270
  11. 28
  12. 1/10
  13. 36
  14. 2
  15. 6
  16. 15/14
  17. 69000
  18. 48000
  19. 1
  20. 111
  21. 2
  22. 4
  23. 11
  24. 2/21
  25. 54
  26. 4/33
  27. 56
  28. 8
  29. 14
  30. 18
  31. 15
  32. 2
  33. 7/10
  34. 900
  35. 10
  36. 7.4
  37. 1
  38. 1731
  39. 46.9
  40. 836

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