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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 112 · 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 1/2 of 60 km?
  2. 2.Find the LCM of 4, 8 and 7.
  3. 3.Divide ₹264 between Kabir and Aarav in the ratio 7 : 1. How much does Kabir get (in ₹)?
  4. 4.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  5. 5.Find the LCM of 6, 10 and 12.
  6. 6.4 : 9 = 20 : ?
  7. 7.Find the HCF of 48 and 60.
  8. 8.What is 75% of 60?
  9. 9.10% of a number is 35. What is the number?
  10. 10.72 − 45 ÷ 9 × 9 =
  11. 11.Which of these numbers divides exactly by 3? (a) 1324 (b) 7456 (c) 2463 (d) 5333
  12. 12.42 + 5 × 9 − 12 =
  13. 13.If 8 bottles of juice cost ₹56, how much do 12 bottles of juice cost (in ₹)?
  14. 14.What is 80% of 210?
  15. 15.A car goes 72 km on 8 litres of petrol. How far can it go on 5 litres (in km)?
  16. 16.How many factors does 52 have?
  17. 17.Arjun takes 80 seconds and Diya takes 60 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  18. 18.1/4 of 16 + 4 × 2 =
  19. 19.How many factors does 89 have?
  20. 20.What is the smallest number you must add to 426 so that it divides exactly by 11?
  21. 21.Three temple bells ring every 6, 24 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.A hall floor is 140 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  23. 23.7/12 + 9/11 =
  24. 24.If 3 kg of rice costs ₹66, how many kg can you buy for ₹286?
  25. 25.2/9 × 6/11 =
  26. 26.Find the LCM of 12, 2 and 11.
  27. 27.9 × (13 − 4) + 54 ÷ 6 =
  28. 28.Manav takes 30 seconds and Dev takes 45 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  29. 29.Kabir takes 54 seconds and Diya takes 45 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  30. 30.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  31. 31.4 : 15 = 32 : ?
  32. 32.1/2 of 8 + 7 × 7 =
  33. 33.What is 1/3 of ₹33?
  34. 34.A car goes 112 km on 8 litres of petrol. How far can it go on 7 litres (in km)?
  35. 35.If 8 cricket balls cost ₹408, how much do 10 cricket balls cost (in ₹)?
  36. 36.Which is closest to 894 ÷ 29? (a) 15 (b) 60 (c) 300 (d) 30
  37. 37.Divide ₹84 between Saanvi and Kabir in the ratio 7 : 5. How much does Kabir get (in ₹)?
  38. 38.Which is closest to 897 + 299 + 403? (a) 1700 (b) 1500 (c) 1800 (d) 1600
  39. 39.Find the LCM of 7 and 5.
  40. 40.Two tanks hold 450 litres and 350 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?

Answer key

  1. 30
  2. 56
  3. 231
  4. 50
  5. 60
  6. 45
  7. 12
  8. 45
  9. 350
  10. 27
  11. 2463
  12. 75
  13. 84
  14. 168
  15. 45
  16. 6
  17. 240
  18. 12
  19. 2
  20. 3
  21. 72
  22. 21
  23. 185/132
  24. 13
  25. 4/33
  26. 132
  27. 90
  28. 90
  29. 270
  30. 18
  31. 120
  32. 53
  33. 11
  34. 98
  35. 510
  36. 30
  37. 35
  38. 1600
  39. 35
  40. 50

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