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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 586 · 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.What is the smallest number you must take away from 627 so that it divides exactly by 8?
  2. 2.1/2 of 20 + 2 × 8 =
  3. 3.Divide ₹280 between Meera and Pooja in the ratio 4 : 3. How much does Pooja get (in ₹)?
  4. 4.A car goes 63 km on 3 litres of petrol. How far can it go on 16 litres (in km)?
  5. 5.If 9 notebooks cost ₹450, how much do 5 notebooks cost (in ₹)?
  6. 6.Write 23/50 as a percent.
  7. 7.The ratio of boys to girls in a class is 3 : 5. There are 6 boys. How many girls are there?
  8. 8.4 painters can paint a school in 21 days. How many days would 12 painters take, working at the same speed?
  9. 9.Find the HCF of 63 and 28.
  10. 10.4 × (12 − 8) + 20 ÷ 5 =
  11. 11.Which is closest to 701 + 596 + 898? (a) 2100 (b) 2300 (c) 2400 (d) 2200
  12. 12.How many factors does 30 have?
  13. 13.Find the LCM of 15 and 27.
  14. 14.2/5 of 55 + 2 × 8 =
  15. 15.A hall floor is 240 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  16. 16.Which of these numbers divides exactly by 4? (a) 8284 (b) 2795 (c) 4274 (d) 7214
  17. 17.Find the smallest number bigger than 15 that leaves a remainder of 4 when divided by 9, 10 or 15.
  18. 18.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  19. 19.A car goes 161 km on 7 litres of petrol. How far can it go on 31 litres (in km)?
  20. 20.If 2 kg of rice costs ₹90, how many kg can you buy for ₹135?
  21. 21.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?
  22. 22.12.4 ÷ 4 =
  23. 23.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  24. 24.13.4 ÷ 2 =
  25. 25.What percent of 80 is 28?
  26. 26.What is 4/9 of ₹18?
  27. 27.How many factors does 14 have?
  28. 28.Find the LCM of 16 and 28.
  29. 29.Which is closest to 601 × 89? (Round each number first.) (a) 108000 (b) 54000 (c) 540000 (d) 5400
  30. 30.11 painters can paint a school in 22 days. How many days would 22 painters take, working at the same speed?
  31. 31.31 + 3 × 12 − 15 =
  32. 32.A car goes 99 km on 11 litres of petrol. How far can it go on 28 litres (in km)?
  33. 33.How many factors does 80 have?
  34. 34.76 − 10 ÷ 2 × 9 =
  35. 35.5% of a number is 17. What is the number?
  36. 36.1/12 + 1/4 =
  37. 37.(9 + 2) × 8 − 20 =
  38. 38.Which of these numbers divides exactly by 11? (a) 5610 (b) 5386 (c) 1937 (d) 7151
  39. 39.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  40. 40.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).

Answer key

  1. 3
  2. 26
  3. 120
  4. 336
  5. 250
  6. 46
  7. 10
  8. 7
  9. 7
  10. 20
  11. 2200
  12. 8
  13. 135
  14. 38
  15. 24
  16. 8284
  17. 94
  18. 50
  19. 713
  20. 3
  21. 30
  22. 3.1
  23. 20
  24. 6.7
  25. 35
  26. 8
  27. 4
  28. 112
  29. 54000
  30. 11
  31. 52
  32. 252
  33. 10
  34. 31
  35. 340
  36. 1/3
  37. 68
  38. 5610
  39. 81
  40. 8

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