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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 613 · 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.Divide ₹171 between Arjun and Ishaan in the ratio 1 : 2. How much does Arjun get (in ₹)?
  2. 2.What is the smallest number you must take away from 267 so that it divides exactly by 11?
  3. 3.44 − 12 ÷ 4 × 5 =
  4. 4.What is the smallest number you must add to 251 so that it divides exactly by 11?
  5. 5.Round 26008 to the nearest ten.
  6. 6.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 6, 3 or 10.
  7. 7.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  8. 8.Three temple bells ring every 12, 5 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.1/2 + 4/7 =
  10. 10.What is 3/8 of 192 litres?
  11. 11.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  12. 12.9 ÷ 3 × 7 + 7 =
  13. 13.Find the LCM of 7 and 6.
  14. 14.4 : 11 = 8 : ?
  15. 15.Find the HCF of 84 and 108.
  16. 16.9 painters can paint a school in 24 days. How many days would 8 painters take, working at the same speed?
  17. 17.Round 81.16 to one decimal place. =
  18. 18.Three temple bells ring every 4, 12 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.What is the smallest number you must add to 109 so that it divides exactly by 9?
  20. 20.What is the smallest number you must add to 351 so that it divides exactly by 11?
  21. 21.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 5, 3 or 9.
  22. 22.A hall floor is 100 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  23. 23.Which is closest to 1208 ÷ 39? (a) 300 (b) 30 (c) 15 (d) 60
  24. 24.If 9 kg of rice costs ₹603, how many kg can you buy for ₹268?
  25. 25.Zoya scored 48 marks out of 50 in a test. What percentage did Zoya score?
  26. 26.1/2 of 6 + 7 × 4 =
  27. 27.9 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
  28. 28.What percent of 40 is 22?
  29. 29.6 × (18 − 13) + 63 ÷ 9 =
  30. 30.What percent of 40 is 34?
  31. 31.A hostel has enough food for 5 students for 28 days. How many days will the same food last for 10 students?
  32. 32.Which is closest to 596 × 89? (Round each number first.) (a) 54000 (b) 108000 (c) 5400 (d) 540000
  33. 33.The ratio of boys to girls in a class is 1 : 3. There are 4 boys. How many girls are there?
  34. 34.Round 56.28 to one decimal place. =
  35. 35.Round 19.07 to one decimal place. =
  36. 36.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  37. 37.What is 1/2 of ₹12?
  38. 38.15.2 ÷ 2 =
  39. 39.61 − 24 ÷ 3 × 4 =
  40. 40.Which is closest to 899 × 38? (Round each number first.) (a) 3600 (b) 360000 (c) 72000 (d) 36000

Answer key

  1. 57
  2. 3
  3. 29
  4. 2
  5. 26010
  6. 32
  7. 32
  8. 60
  9. 15/14
  10. 72
  11. 27
  12. 28
  13. 42
  14. 22
  15. 12
  16. 27
  17. 81.2
  18. 36
  19. 8
  20. 1
  21. 46
  22. 12
  23. 30
  24. 4
  25. 96
  26. 31
  27. 9
  28. 55
  29. 37
  30. 85
  31. 14
  32. 54000
  33. 12
  34. 56.3
  35. 19.1
  36. 28
  37. 6
  38. 7.6
  39. 29
  40. 36000

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