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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 228 · 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.Which is closest to 799 × 28? (Round each number first.) (a) 48000 (b) 240000 (c) 24000 (d) 2400
  2. 2.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  3. 3.A car goes 121 km on 11 litres of petrol. How far can it go on 30 litres (in km)?
  4. 4.Two tanks hold 30 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  5. 5.Which is closest to 1997 ÷ 49? (a) 80 (b) 20 (c) 40 (d) 400
  6. 6.What is the smallest number you must add to 859 so that it divides exactly by 4?
  7. 7.Write 9/20 as a percent.
  8. 8.Divide ₹150 between Ishaan and Dev in the ratio 1 : 2. How much does Ishaan get (in ₹)?
  9. 9.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 3 or 8.
  10. 10.Find the LCM of 6, 15 and 9.
  11. 11.Kabir scored 18 marks out of 25 in a test. What percentage did Kabir score?
  12. 12.Which is closest to 599 × 61? (Round each number first.) (a) 72000 (b) 36000 (c) 360000 (d) 3600
  13. 13.Which is closest to 4504 ÷ 51? (a) 45 (b) 180 (c) 90 (d) 900
  14. 14.If 8 kg of rice costs ₹296, how many kg can you buy for ₹518?
  15. 15.20% of a number is 26. What is the number?
  16. 16.If 6 kg of rice costs ₹336, how many kg can you buy for ₹168?
  17. 17.Find the smallest number bigger than 6 that leaves a remainder of 2 when divided by 3, 4 or 6.
  18. 18.3 painters can paint a school in 27 days. How many days would 9 painters take, working at the same speed?
  19. 19.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 8, 15 or 5.
  20. 20.The ratio of boys to girls in a class is 5 : 3. There are 15 boys. How many girls are there?
  21. 21.The ratio of boys to girls in a class is 4 : 7. There are 20 boys. How many girls are there?
  22. 22.2/9 + 10/12 =
  23. 23.Two tanks hold 105 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  24. 24.8 : 4 = 40 : ?
  25. 25.A car goes 40 km on 4 litres of petrol. How far can it go on 40 litres (in km)?
  26. 26.If 3 kg of rice costs ₹261, how many kg can you buy for ₹174?
  27. 27.Round 61835 to the nearest hundred.
  28. 28.(15 + 20) × 8 − 28 =
  29. 29.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  30. 30.Write 9/10 as a percent.
  31. 31.Find the LCM of 32 and 36.
  32. 32.3 : 4 = 27 : ?
  33. 33.Which of these numbers divides exactly by 4? (a) 7473 (b) 8439 (c) 3499 (d) 6476
  34. 34.Which is closest to 4502 ÷ 49? (a) 900 (b) 90 (c) 180 (d) 45
  35. 35.Divide ₹65 between Meera and Aditya in the ratio 5 : 8. How much does Meera get (in ₹)?
  36. 36.Aarav scored 4 marks out of 20 in a test. What percentage did Aarav score?
  37. 37.Which is closest to 406 ÷ 19? (a) 200 (b) 10 (c) 20 (d) 40
  38. 38.Round 56964 to the nearest ten.
  39. 39.Find the HCF of 105 and 30.
  40. 40.6.42 + 8.2 =

Answer key

  1. 24000
  2. 54
  3. 330
  4. 10
  5. 40
  6. 1
  7. 45
  8. 50
  9. 121
  10. 90
  11. 72
  12. 36000
  13. 90
  14. 14
  15. 130
  16. 3
  17. 14
  18. 9
  19. 121
  20. 9
  21. 35
  22. 19/18
  23. 15
  24. 20
  25. 400
  26. 2
  27. 61800
  28. 252
  29. 225
  30. 90
  31. 288
  32. 36
  33. 6476
  34. 90
  35. 25
  36. 20
  37. 20
  38. 56960
  39. 15
  40. 14.62

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