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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 217 · 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.How many factors does 60 have?
  2. 2.Find the smallest number bigger than 15 that leaves a remainder of 5 when divided by 10, 15 or 12.
  3. 3.Round 57073 to the nearest hundred.
  4. 4.2/4 + 1/3 =
  5. 5.2 × (29 − 9) + 40 ÷ 5 =
  6. 6.Which of these numbers divides exactly by 9? (a) 9933 (b) 5293 (c) 9531 (d) 8141
  7. 7.Which is closest to 704 + 196 + 102? (a) 1200 (b) 1100 (c) 900 (d) 1000
  8. 8.Find the LCM of 3, 4 and 9.
  9. 9.If 7 kites cost ₹392, how much do 17 kites cost (in ₹)?
  10. 10.If 8 kg of rice costs ₹528, how many kg can you buy for ₹792?
  11. 11.Find the LCM of 13, 12 and 4.
  12. 12.Write 1/2 as a percent.
  13. 13.Write 13/25 as a percent.
  14. 14.How many factors does 56 have?
  15. 15.The HCF of two numbers is 3 and their LCM is 105. One of the numbers is 15. What is the other number?
  16. 16.Round 28.94 to one decimal place. =
  17. 17.What is 20% of 285?
  18. 18.Three temple bells ring every 6, 8 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.67 − 27 ÷ 3 × 4 =
  20. 20.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  21. 21.1/3 of 36 + 6 × 8 =
  22. 22.How many factors does 33 have?
  23. 23.What is the smallest number you must take away from 737 so that it divides exactly by 4?
  24. 24.8/10 × 1/2 =
  25. 25.Which is closest to 301 + 501 + 902? (a) 1600 (b) 1900 (c) 1800 (d) 1700
  26. 26.Which is closest to 500 + 697 + 503? (a) 1900 (b) 1700 (c) 1600 (d) 1800
  27. 27.Two tanks hold 50 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.Write 1/4 as a percent.
  29. 29.3 × (22 − 1) + 54 ÷ 9 =
  30. 30.How many factors does 37 have?
  31. 31.What percent of 20 is 4?
  32. 32.Divide ₹90 between Meera and Kabir in the ratio 9 : 1. How much does Meera get (in ₹)?
  33. 33.Round 78.94 to one decimal place. =
  34. 34.Find the LCM of 24 and 30.
  35. 35.1/7 + 11/12 =
  36. 36.A car goes 125 km on 5 litres of petrol. How far can it go on 25 litres (in km)?
  37. 37.What is the smallest number you must add to 406 so that it divides exactly by 3?
  38. 38.What is 120% of 80?
  39. 39.A car goes 126 km on 7 litres of petrol. How far can it go on 9 litres (in km)?
  40. 40.Find the LCM of 14 and 4.

Answer key

  1. 12
  2. 65
  3. 57100
  4. 5/6
  5. 48
  6. 9531
  7. 1000
  8. 36
  9. 952
  10. 12
  11. 156
  12. 50
  13. 52
  14. 8
  15. 21
  16. 28.9
  17. 57
  18. 120
  19. 31
  20. 81
  21. 60
  22. 4
  23. 1
  24. 2/5
  25. 1700
  26. 1700
  27. 10
  28. 25
  29. 69
  30. 2
  31. 20
  32. 81
  33. 78.9
  34. 120
  35. 89/84
  36. 625
  37. 2
  38. 96
  39. 162
  40. 28

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