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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 700 · 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.If 11 erasers cost ₹539, how much do 5 erasers cost (in ₹)?
  2. 2.Write 3/5 as a percent.
  3. 3.40% of a number is 24. What is the number?
  4. 4.How many factors does 67 have?
  5. 5.Round 98122 to the nearest ten.
  6. 6.Which is closest to 498 × 68? (Round each number first.) (a) 3500 (b) 350000 (c) 35000 (d) 70000
  7. 7.2/3 − 3/5 =
  8. 8.Three temple bells ring every 10, 8 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.Write 2/5 as a percent.
  10. 10.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 15, 9 or 6.
  11. 11.How many factors does 43 have?
  12. 12.If 6 kg of rice costs ₹354, how many kg can you buy for ₹413?
  13. 13.Kabir scored 14 marks out of 40 in a test. What percentage did Kabir score?
  14. 14.What is the smallest number you must add to 311 so that it divides exactly by 9?
  15. 15.11 : 6 = 22 : ?
  16. 16.2/3 of 30 + 4 × 9 =
  17. 17.Which of these numbers divides exactly by 6? (a) 4008 (b) 2999 (c) 5203 (d) 3261
  18. 18.Three temple bells ring every 5, 15 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  20. 20.Which is closest to 2499 ÷ 51? (a) 500 (b) 25 (c) 50 (d) 100
  21. 21.Rohan scored 12 marks out of 25 in a test. What percentage did Rohan score?
  22. 22.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  23. 23.Divide ₹336 between Manav and Ishaan in the ratio 1 : 5. How much does Manav get (in ₹)?
  24. 24.The ratio of boys to girls in a class is 9 : 8. There are 81 boys. How many girls are there?
  25. 25.36 + 8 × 5 − 7 =
  26. 26.Which of these numbers divides exactly by 3? (a) 8681 (b) 2499 (c) 7157 (d) 1246
  27. 27.Which is closest to 896 × 78? (Round each number first.) (a) 72000 (b) 144000 (c) 720000 (d) 7200
  28. 28.Divide ₹430 between Farhan and Rohan in the ratio 9 : 1. How much does Farhan get (in ₹)?
  29. 29.A hall floor is 140 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  30. 30.If 10 bottles of juice cost ₹50, how much do 19 bottles of juice cost (in ₹)?
  31. 31.Which is closest to 794 ÷ 21? (a) 20 (b) 40 (c) 80 (d) 400
  32. 32.Which is closest to 1191 ÷ 21? (a) 120 (b) 30 (c) 600 (d) 60
  33. 33.55.3 ÷ 7 =
  34. 34.4 painters can paint a school in 4 days. How many days would 2 painters take, working at the same speed?
  35. 35.The ratio of boys to girls in a class is 4 : 9. There are 24 boys. How many girls are there?
  36. 36.Find the LCM of 15, 6 and 3.
  37. 37.Vivaan scored 20 marks out of 80 in a test. What percentage did Vivaan score?
  38. 38.What is the smallest number you must take away from 825 so that it divides exactly by 6?
  39. 39.Round 40248 to the nearest thousand.
  40. 40.8 × (13 − 2) + 8 ÷ 2 =

Answer key

  1. 245
  2. 60
  3. 60
  4. 2
  5. 98120
  6. 35000
  7. 1/15
  8. 40
  9. 40
  10. 93
  11. 2
  12. 7
  13. 35
  14. 4
  15. 12
  16. 56
  17. 4008
  18. 60
  19. 81
  20. 50
  21. 48
  22. 80
  23. 56
  24. 72
  25. 69
  26. 2499
  27. 72000
  28. 387
  29. 21
  30. 95
  31. 40
  32. 60
  33. 7.9
  34. 8
  35. 54
  36. 30
  37. 25
  38. 3
  39. 40000
  40. 92

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