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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 272 · 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 13 have?
  2. 2.38 + 2 × 8 − 27 =
  3. 3.Find the LCM of 20 and 8.
  4. 4.If 6 mangoes cost ₹144, how much do 16 mangoes cost (in ₹)?
  5. 5.5 painters can paint a school in 24 days. How many days would 6 painters take, working at the same speed?
  6. 6.4.9 × 4 =
  7. 7.Three temple bells ring every 24, 6 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  8. 8.Find the LCM of 11, 2 and 7.
  9. 9.(15 + 11) × 2 − 24 =
  10. 10.A hall floor is 175 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  11. 11.Find the HCF of 50 and 20.
  12. 12.How many factors does 24 have?
  13. 13.Write 23/50 as a percent.
  14. 14.3/12 + 2/6 =
  15. 15.What is 8/9 of 18 km?
  16. 16.What is 5/9 of ₹126?
  17. 17.A car goes 190 km on 10 litres of petrol. How far can it go on 24 litres (in km)?
  18. 18.Three temple bells ring every 18, 6 and 4 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 take away from 766 so that it divides exactly by 11?
  20. 20.Find the HCF of 56 and 126.
  21. 21.What percent of 80 is 20?
  22. 22.What is 20% of 110?
  23. 23.What is 1/7 of 28 kg?
  24. 24.What is the smallest number you must add to 519 so that it divides exactly by 13?
  25. 25.Find the smallest number bigger than 10 that leaves a remainder of 5 when divided by 6, 10 or 8.
  26. 26.Which is closest to 96 + 797 + 297? (a) 1400 (b) 1100 (c) 1200 (d) 1300
  27. 27.A car goes 33 km on 3 litres of petrol. How far can it go on 10 litres (in km)?
  28. 28.What is 75% of 124?
  29. 29.Find the LCM of 4, 11 and 3.
  30. 30.Two tanks hold 250 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  31. 31.Which is closest to 2697 ÷ 29? (a) 45 (b) 900 (c) 90 (d) 180
  32. 32.Divide ₹798 between Kavya and Aditya in the ratio 5 : 9. How much does Kavya get (in ₹)?
  33. 33.48 − 18 ÷ 6 × 7 =
  34. 34.Find the HCF of 70 and 56.
  35. 35.The ratio of boys to girls in a class is 7 : 2. There are 70 boys. How many girls are there?
  36. 36.If 4 kg of rice costs ₹316, how many kg can you buy for ₹711?
  37. 37.Write 2/5 as a percent.
  38. 38.104 − 72 ÷ 9 × 8 =
  39. 39.2/7 of 21 + 5 × 7 =
  40. 40.49 + 9 × 2 − 12 =

Answer key

  1. 2
  2. 27
  3. 40
  4. 384
  5. 20
  6. 19.6
  7. 72
  8. 154
  9. 28
  10. 42
  11. 10
  12. 8
  13. 46
  14. 7/12
  15. 16
  16. 70
  17. 456
  18. 36
  19. 7
  20. 14
  21. 25
  22. 22
  23. 4
  24. 1
  25. 125
  26. 1200
  27. 110
  28. 93
  29. 132
  30. 50
  31. 90
  32. 285
  33. 27
  34. 14
  35. 20
  36. 9
  37. 40
  38. 40
  39. 41
  40. 55

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