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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 782 · 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.A hall floor is 180 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  2. 2.46 − 42 ÷ 7 × 4 =
  3. 3.75% of a number is 393. What is the number?
  4. 4.What is 20% of 195?
  5. 5.What is 5/8 of 72 km?
  6. 6.Find the LCM of 13, 2 and 10.
  7. 7.What percent of 25 is 16?
  8. 8.Find the HCF of 56 and 21.
  9. 9.Find the HCF of 21 and 9.
  10. 10.What is 5/9 of ₹144?
  11. 11.Pooja scored 12 marks out of 25 in a test. What percentage did Pooja score?
  12. 12.What is 1/2 of 46 km?
  13. 13.Divide ₹90 between Manav and Ananya in the ratio 3 : 7. How much does Manav get (in ₹)?
  14. 14.Pooja scored 22 marks out of 25 in a test. What percentage did Pooja score?
  15. 15.3 × (13 − 11) + 24 ÷ 8 =
  16. 16.11 : 6 = 66 : ?
  17. 17.Round 98675 to the nearest thousand.
  18. 18.Round 11.83 to one decimal place. =
  19. 19.If 9 kites cost ₹207, how much do 18 kites cost (in ₹)?
  20. 20.Divide ₹539 between Nisha and Dev in the ratio 5 : 6. How much does Dev get (in ₹)?
  21. 21.38 + 4 × 3 − 12 =
  22. 22.Find the HCF of 70 and 20.
  23. 23.Find the LCM of 18 and 12.
  24. 24.Find the HCF of 90 and 20.
  25. 25.The ratio of boys to girls in a class is 2 : 5. There are 14 boys. How many girls are there?
  26. 26.How many factors does 52 have?
  27. 27.Two tanks hold 135 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.Which of these numbers divides exactly by 3? (a) 3055 (b) 4532 (c) 9567 (d) 7543
  29. 29.The HCF of two numbers is 7 and their LCM is 280. One of the numbers is 35. What is the other number?
  30. 30.Which is closest to 3603 ÷ 39? (a) 90 (b) 180 (c) 45 (d) 900
  31. 31.14.2 ÷ 2 =
  32. 32.4/5 − 1/8 =
  33. 33.50% of a number is 24. What is the number?
  34. 34.42 ÷ 7 × 7 + 16 =
  35. 35.The HCF of two numbers is 4 and their LCM is 56. One of the numbers is 8. What is the other number?
  36. 36.How many factors does 15 have?
  37. 37.Which of these numbers divides exactly by 4? (a) 5743 (b) 3688 (c) 7854 (d) 5682
  38. 38.Two tanks hold 105 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  39. 39.The HCF of two numbers is 6 and their LCM is 60. One of the numbers is 12. What is the other number?
  40. 40.6.4 ÷ 2 =

Answer key

  1. 30
  2. 22
  3. 524
  4. 39
  5. 45
  6. 130
  7. 64
  8. 7
  9. 3
  10. 80
  11. 48
  12. 23
  13. 27
  14. 88
  15. 9
  16. 36
  17. 99000
  18. 11.8
  19. 414
  20. 294
  21. 38
  22. 10
  23. 36
  24. 10
  25. 35
  26. 6
  27. 15
  28. 9567
  29. 56
  30. 90
  31. 7.1
  32. 27/40
  33. 48
  34. 58
  35. 28
  36. 4
  37. 3688
  38. 15
  39. 30
  40. 3.2

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