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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 593 · 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 add to 464 so that it divides exactly by 12?
  2. 2.Round 59.17 to one decimal place. =
  3. 3.What is the smallest number you must take away from 564 so that it divides exactly by 13?
  4. 4.The ratio of boys to girls in a class is 8 : 9. There are 24 boys. How many girls are there?
  5. 5.9 × (28 − 14) + 22 ÷ 2 =
  6. 6.What percent of 25 is 5?
  7. 7.How many factors does 92 have?
  8. 8.What is 40% of 165?
  9. 9.What is the smallest number you must take away from 826 so that it divides exactly by 4?
  10. 10.Find the LCM of 27 and 21.
  11. 11.50% of a number is 180. What is the number?
  12. 12.What percent of 250 is 65?
  13. 13.What is the smallest number you must add to 968 so that it divides exactly by 3?
  14. 14.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 4, 9 or 10.
  15. 15.Find the LCM of 9 and 5.
  16. 16.Which is closest to 196 + 99 + 900? (a) 1100 (b) 1300 (c) 1400 (d) 1200
  17. 17.Three temple bells ring every 6, 5 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  18. 18.What is 15% of 220?
  19. 19.The HCF of two numbers is 9 and their LCM is 648. One of the numbers is 81. What is the other number?
  20. 20.Round 22.92 to one decimal place. =
  21. 21.Which of these numbers divides exactly by 6? (a) 2885 (b) 1536 (c) 3238 (d) 1509
  22. 22.Find the LCM of 4, 11 and 8.
  23. 23.How many factors does 23 have?
  24. 24.Which is closest to 602 ÷ 31? (a) 20 (b) 10 (c) 200 (d) 40
  25. 25.Which of these numbers divides exactly by 8? (a) 6564 (b) 3582 (c) 8368 (d) 9546
  26. 26.Round 41.54 to one decimal place. =
  27. 27.If 11 bottles of juice cost ₹418, how much do 20 bottles of juice cost (in ₹)?
  28. 28.If 3 kg of rice costs ₹195, how many kg can you buy for ₹130?
  29. 29.Round 75.31 to one decimal place. =
  30. 30.5% of a number is 25. What is the number?
  31. 31.2.2 × 3 =
  32. 32.Three temple bells ring every 9, 6 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  33. 33.What percent of 80 is 68?
  34. 34.Three temple bells ring every 8, 9 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  35. 35.36 + 10 × 2 − 2 =
  36. 36.Write 2/25 as a percent.
  37. 37.What is the smallest number you must add to 165 so that it divides exactly by 4?
  38. 38.The ratio of boys to girls in a class is 2 : 9. There are 18 boys. How many girls are there?
  39. 39.Write 7/10 as a percent.
  40. 40.A car goes 63 km on 3 litres of petrol. How far can it go on 22 litres (in km)?

Answer key

  1. 4
  2. 59.2
  3. 5
  4. 27
  5. 137
  6. 20
  7. 6
  8. 66
  9. 2
  10. 189
  11. 360
  12. 26
  13. 1
  14. 181
  15. 45
  16. 1200
  17. 60
  18. 33
  19. 72
  20. 22.9
  21. 1536
  22. 88
  23. 2
  24. 20
  25. 8368
  26. 41.5
  27. 760
  28. 2
  29. 75.3
  30. 500
  31. 6.6
  32. 90
  33. 85
  34. 72
  35. 54
  36. 8
  37. 3
  38. 81
  39. 70
  40. 462

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