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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 336 · 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.Two tanks hold 20 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  2. 2.2 : 14 = 16 : ?
  3. 3.What is the smallest number you must take away from 171 so that it divides exactly by 4?
  4. 4.Which is closest to 298 × 40? (Round each number first.) (a) 24000 (b) 12000 (c) 120000 (d) 1200
  5. 5.16.2 ÷ 9 =
  6. 6.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 3 or 8.
  7. 7.If 2 kg of rice costs ₹44, how many kg can you buy for ₹220?
  8. 8.5/9 of 90 + 3 × 3 =
  9. 9.If 7 kg of rice costs ₹560, how many kg can you buy for ₹1120?
  10. 10.What is the smallest number you must add to 479 so that it divides exactly by 12?
  11. 11.Write 1/2 as a percent.
  12. 12.What is the smallest number you must add to 556 so that it divides exactly by 12?
  13. 13.Find the LCM of 15 and 10.
  14. 14.Find the HCF of 54 and 12.
  15. 15.What percent of 50 is 5?
  16. 16.7.7 × 9 =
  17. 17.What is 1/4 of 68 kg?
  18. 18.What is 25% of 140?
  19. 19.Zoya scored 40 marks out of 50 in a test. What percentage did Zoya score?
  20. 20.What is 1/6 of 42 litres?
  21. 21.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 6, 10 or 4.
  22. 22.If 7 mangoes cost ₹315, how much do 3 mangoes cost (in ₹)?
  23. 23.2.26 + 5.4 =
  24. 24.28 − 6 ÷ 3 × 3 =
  25. 25.Which is closest to 200 × 28? (Round each number first.) (a) 60000 (b) 600 (c) 6000 (d) 12000
  26. 26.2/3 − 2/11 =
  27. 27.The HCF of two numbers is 3 and their LCM is 120. One of the numbers is 24. What is the other number?
  28. 28.25 − 12 ÷ 3 × 3 =
  29. 29.Write 3/10 as a percent.
  30. 30.How many factors does 91 have?
  31. 31.Tara takes 48 seconds and Priya 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?
  32. 32.A hall floor is 75 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  33. 33.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 5, 15 or 4.
  34. 34.Divide ₹396 between Kabir and Sneha in the ratio 2 : 9. How much does Sneha get (in ₹)?
  35. 35.What is the smallest number you must take away from 581 so that it divides exactly by 8?
  36. 36.Ishaan scored 22 marks out of 40 in a test. What percentage did Ishaan score?
  37. 37.How many factors does 42 have?
  38. 38.Find the LCM of 6, 9 and 14.
  39. 39.12 ÷ 4 × 3 + 19 =
  40. 40.If 2 kg of rice costs ₹84, how many kg can you buy for ₹252?

Answer key

  1. 10
  2. 112
  3. 3
  4. 12000
  5. 1.8
  6. 25
  7. 10
  8. 59
  9. 14
  10. 1
  11. 50
  12. 8
  13. 30
  14. 6
  15. 10
  16. 69.3
  17. 17
  18. 35
  19. 80
  20. 7
  21. 61
  22. 135
  23. 7.66
  24. 22
  25. 6000
  26. 16/33
  27. 15
  28. 13
  29. 30
  30. 4
  31. 240
  32. 6
  33. 62
  34. 324
  35. 5
  36. 55
  37. 8
  38. 126
  39. 28
  40. 6

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