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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 543 · 40 questions
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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.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  2. 2.Find the LCM of 40 and 15.
  3. 3.Meera takes 48 seconds and Priya takes 80 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?
  4. 4.Which is closest to 402 + 497 + 403? (a) 1400 (b) 1500 (c) 1200 (d) 1300
  5. 5.(18 + 11) × 7 − 26 =
  6. 6.Find the LCM of 8 and 6.
  7. 7.13.5 ÷ 9 =
  8. 8.Find the HCF of 66 and 55.
  9. 9.87 − 54 ÷ 6 × 9 =
  10. 10.If 3 kg of rice costs ₹84, how many kg can you buy for ₹140?
  11. 11.20 ÷ 2 × 6 + 27 =
  12. 12.If 6 kg of rice costs ₹336, how many kg can you buy for ₹560?
  13. 13.8 × (16 − 12) + 60 ÷ 6 =
  14. 14.Two tanks hold 125 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  15. 15.Find the smallest number bigger than 12 that leaves a remainder of 6 when divided by 10, 12 or 8.
  16. 16.Which of these numbers divides exactly by 3? (a) 4651 (b) 1957 (c) 4896 (d) 4906
  17. 17.Which is closest to 395 + 604 + 404? (a) 1600 (b) 1300 (c) 1500 (d) 1400
  18. 18.12 : 9 = 60 : ?
  19. 19.24 + 10 × 2 − 6 =
  20. 20.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 6, 4 or 8.
  21. 21.How many factors does 64 have?
  22. 22.What percent of 400 is 28?
  23. 23.Which of these numbers divides exactly by 11? (a) 7822 (b) 5552 (c) 9262 (d) 5903
  24. 24.Two tanks hold 40 litres and 140 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  25. 25.If 5 kg of rice costs ₹115, how many kg can you buy for ₹276?
  26. 26.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  27. 27.Round 10.16 to one decimal place. =
  28. 28.A car goes 120 km on 8 litres of petrol. How far can it go on 4 litres (in km)?
  29. 29.Which is closest to 600 + 300 + 96? (a) 1100 (b) 1200 (c) 900 (d) 1000
  30. 30.If 3 kg of rice costs ₹93, how many kg can you buy for ₹310?
  31. 31.Find the third proportional to 3 and 12 (that is, 3 : 12 = 12 : ?).
  32. 32.If 3 kg of rice costs ₹207, how many kg can you buy for ₹690?
  33. 33.A car goes 156 km on 12 litres of petrol. How far can it go on 20 litres (in km)?
  34. 34.What is the smallest number you must take away from 930 so that it divides exactly by 13?
  35. 35.What is 1/2 of 54 litres?
  36. 36.7 × (15 − 6) + 28 ÷ 4 =
  37. 37.80% of a number is 136. What is the number?
  38. 38.Two tanks hold 75 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  39. 39.Three temple bells ring every 6, 9 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.A hall floor is 270 cm long and 225 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

Answer key

  1. 50
  2. 120
  3. 240
  4. 1300
  5. 177
  6. 24
  7. 1.5
  8. 11
  9. 6
  10. 5
  11. 87
  12. 10
  13. 42
  14. 25
  15. 126
  16. 4896
  17. 1400
  18. 45
  19. 38
  20. 26
  21. 7
  22. 7
  23. 9262
  24. 20
  25. 12
  26. 144
  27. 10.2
  28. 60
  29. 1000
  30. 10
  31. 48
  32. 10
  33. 260
  34. 7
  35. 27
  36. 70
  37. 170
  38. 15
  39. 90
  40. 30

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