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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 449 · 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 ₹140 between Priya and Vivaan in the ratio 5 : 2. How much does Priya get (in ₹)?
  2. 2.If 6 pens cost ₹78, how much do 4 pens cost (in ₹)?
  3. 3.Divide ₹420 between Karan and Pooja in the ratio 7 : 3. How much does Pooja get (in ₹)?
  4. 4.120% of a number is 474. What is the number?
  5. 5.Round 21859 to the nearest ten.
  6. 6.The ratio of boys to girls in a class is 5 : 2. There are 45 boys. How many girls are there?
  7. 7.Which is closest to 596 × 40? (Round each number first.) (a) 24000 (b) 240000 (c) 48000 (d) 2400
  8. 8.A car goes 72 km on 4 litres of petrol. How far can it go on 11 litres (in km)?
  9. 9.25 − 54 ÷ 6 × 2 =
  10. 10.Which is closest to 3504 ÷ 49? (a) 700 (b) 35 (c) 70 (d) 140
  11. 11.Three temple bells ring every 4, 6 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.What is the smallest number you must add to 799 so that it divides exactly by 8?
  13. 13.2/3 of 12 + 8 × 5 =
  14. 14.What is the smallest number you must take away from 492 so that it divides exactly by 11?
  15. 15.What percent of 25 is 10?
  16. 16.Write 7/10 as a percent.
  17. 17.18 + 11 × 7 − 8 =
  18. 18.Find the HCF of 52 and 117.
  19. 19.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  20. 20.Find the smallest number bigger than 6 that leaves a remainder of 1 when divided by 3, 6 or 4.
  21. 21.What is the smallest number you must add to 563 so that it divides exactly by 11?
  22. 22.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  23. 23.Write 7/50 as a percent.
  24. 24.27 ÷ 3 × 3 + 26 =
  25. 25.Find the LCM of 14, 2 and 10.
  26. 26.Three temple bells ring every 20, 6 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.What percent of 20 is 7?
  28. 28.Round 70805 to the nearest thousand.
  29. 29.What percent of 20 is 5?
  30. 30.10.4 ÷ 4 =
  31. 31.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 4, 9 or 6.
  32. 32.56.7 ÷ 7 =
  33. 33.Three temple bells ring every 30, 12 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  34. 34.Find the HCF of 112 and 42.
  35. 35.12 ÷ 6 × 4 + 22 =
  36. 36.Find the LCM of 10 and 4.
  37. 37.21 ÷ 7 × 2 + 9 =
  38. 38.Find the LCM of 40 and 25.
  39. 39.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  40. 40.Which is closest to 597 × 29? (Round each number first.) (a) 180000 (b) 1800 (c) 18000 (d) 36000

Answer key

  1. 100
  2. 52
  3. 126
  4. 395
  5. 21860
  6. 18
  7. 24000
  8. 198
  9. 7
  10. 70
  11. 36
  12. 1
  13. 48
  14. 8
  15. 40
  16. 70
  17. 87
  18. 13
  19. 80
  20. 13
  21. 9
  22. 75
  23. 14
  24. 53
  25. 70
  26. 60
  27. 35
  28. 71000
  29. 25
  30. 2.6
  31. 38
  32. 8.1
  33. 60
  34. 14
  35. 30
  36. 20
  37. 15
  38. 200
  39. 32
  40. 18000

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