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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 150 · 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.Find the third proportional to 8 and 40 (that is, 8 : 40 = 40 : ?).
  2. 2.Find the HCF of 14 and 6.
  3. 3.Which is closest to 2499 ÷ 51? (a) 25 (b) 100 (c) 50 (d) 500
  4. 4.How many factors does 63 have?
  5. 5.A car goes 154 km on 11 litres of petrol. How far can it go on 30 litres (in km)?
  6. 6.How many factors does 35 have?
  7. 7.Round 13.72 to one decimal place. =
  8. 8.Find the LCM of 5, 4 and 8.
  9. 9.If 3 kg of rice costs ₹144, how many kg can you buy for ₹480?
  10. 10.How many factors does 21 have?
  11. 11.3.5 × 2 =
  12. 12.A car goes 54 km on 6 litres of petrol. How far can it go on 16 litres (in km)?
  13. 13.Find the HCF of 8 and 14.
  14. 14.Find the HCF of 30 and 35.
  15. 15.Divide ₹189 between Zoya and Ishaan in the ratio 7 : 2. How much does Zoya get (in ₹)?
  16. 16.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  17. 17.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 5, 10 or 4.
  18. 18.How many factors does 52 have?
  19. 19.25 + 12 × 2 − 16 =
  20. 20.If 8 kg of rice costs ₹544, how many kg can you buy for ₹476?
  21. 21.If 11 mangoes cost ₹484, how much do 15 mangoes cost (in ₹)?
  22. 22.2/4 + 1/6 =
  23. 23.(16 + 2) × 2 − 25 =
  24. 24.Find the HCF of 135 and 105.
  25. 25.9 × (29 − 22) + 54 ÷ 9 =
  26. 26.Two tanks hold 135 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  27. 27.A hall floor is 140 cm long and 40 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  28. 28.Isha scored 24 marks out of 80 in a test. What percentage did Isha score?
  29. 29.Find the LCM of 36 and 20.
  30. 30.30 + 7 × 12 − 21 =
  31. 31.If 2 kg of rice costs ₹112, how many kg can you buy for ₹672?
  32. 32.A hall floor is 280 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  33. 33.If 9 cricket balls cost ₹198, how much do 5 cricket balls cost (in ₹)?
  34. 34.(7 + 12) × 8 − 20 =
  35. 35.7/11 × 2/3 =
  36. 36.Which is closest to 1509 ÷ 29? (a) 25 (b) 100 (c) 50 (d) 500
  37. 37.(4 + 5) × 5 − 2 =
  38. 38.Round 8743 to the nearest thousand.
  39. 39.Which is closest to 901 × 79? (Round each number first.) (a) 72000 (b) 144000 (c) 720000 (d) 7200
  40. 40.If 3 pencil boxes cost ₹159, how much do 4 pencil boxes cost (in ₹)?

Answer key

  1. 200
  2. 2
  3. 50
  4. 6
  5. 420
  6. 4
  7. 13.7
  8. 40
  9. 10
  10. 4
  11. 7
  12. 144
  13. 2
  14. 5
  15. 147
  16. 144
  17. 22
  18. 6
  19. 33
  20. 7
  21. 660
  22. 2/3
  23. 11
  24. 15
  25. 69
  26. 15
  27. 14
  28. 30
  29. 180
  30. 93
  31. 12
  32. 14
  33. 110
  34. 132
  35. 14/33
  36. 50
  37. 43
  38. 9000
  39. 72000
  40. 212

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