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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 384 · 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 20% of 45?
  2. 2.Which is closest to 797 ÷ 21? (a) 400 (b) 80 (c) 20 (d) 40
  3. 3.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 3, 15 or 4.
  4. 4.What is 25% of 580?
  5. 5.9 painters can paint a school in 25 days. How many days would 15 painters take, working at the same speed?
  6. 6.1/2 of 16 + 8 × 9 =
  7. 7.Which is closest to 4496 ÷ 49? (a) 180 (b) 45 (c) 900 (d) 90
  8. 8.4.9 × 5 =
  9. 9.Three temple bells ring every 8, 5 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  10. 10.Find the HCF of 20 and 36.
  11. 11.7/9 − 2/3 =
  12. 12.What is 1/4 of 108 litres?
  13. 13.(14 + 5) × 6 − 12 =
  14. 14.Write 23/50 as a percent.
  15. 15.Which is closest to 296 × 50? (Round each number first.) (a) 1500 (b) 30000 (c) 15000 (d) 150000
  16. 16.Find the LCM of 35 and 15.
  17. 17.Find the HCF of 15 and 12.
  18. 18.How many factors does 64 have?
  19. 19.How many factors does 97 have?
  20. 20.6.57 + 7.8 =
  21. 21.Find the LCM of 4, 6 and 11.
  22. 22.What is 40% of 590?
  23. 23.Three temple bells ring every 24, 9 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  24. 24.What is the smallest number you must take away from 853 so that it divides exactly by 6?
  25. 25.Which is closest to 396 + 798 + 103? (a) 1200 (b) 1500 (c) 1300 (d) 1400
  26. 26.The HCF of two numbers is 3 and their LCM is 105. One of the numbers is 21. What is the other number?
  27. 27.2/4 × 2/3 =
  28. 28.Find the third proportional to 4 and 12 (that is, 4 : 12 = 12 : ?).
  29. 29.Find the LCM of 15, 13 and 3.
  30. 30.The HCF of two numbers is 5 and their LCM is 180. One of the numbers is 45. What is the other number?
  31. 31.Find the smallest number bigger than 6 that leaves a remainder of 1 when divided by 6, 3 or 4.
  32. 32.Which is closest to 301 + 296 + 301? (a) 800 (b) 1000 (c) 1100 (d) 900
  33. 33.Divide ₹531 between Manav and Ishaan in the ratio 7 : 2. How much does Ishaan get (in ₹)?
  34. 34.If 7 kg of rice costs ₹609, how many kg can you buy for ₹1131?
  35. 35.Find the LCM of 14 and 8.
  36. 36.(9 + 5) × 9 − 12 =
  37. 37.A car goes 209 km on 11 litres of petrol. How far can it go on 3 litres (in km)?
  38. 38.What is the smallest number you must add to 397 so that it divides exactly by 4?
  39. 39.A car goes 34 km on 2 litres of petrol. How far can it go on 17 litres (in km)?
  40. 40.56 ÷ 8 × 3 + 25 =

Answer key

  1. 9
  2. 40
  3. 62
  4. 145
  5. 15
  6. 80
  7. 90
  8. 24.5
  9. 40
  10. 4
  11. 1/9
  12. 27
  13. 102
  14. 46
  15. 15000
  16. 105
  17. 3
  18. 7
  19. 2
  20. 14.37
  21. 132
  22. 236
  23. 72
  24. 1
  25. 1300
  26. 15
  27. 1/3
  28. 36
  29. 195
  30. 20
  31. 13
  32. 900
  33. 118
  34. 13
  35. 56
  36. 114
  37. 57
  38. 3
  39. 289
  40. 46

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