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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 172 · 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. 1.15% of a number is 42. What is the number?
  2. 2.Divide ₹112 between Diya and Aarav in the ratio 5 : 2. How much does Diya get (in ₹)?
  3. 3.18 + 6 × 5 − 11 =
  4. 4.1/2 × 4/5 =
  5. 5.Find the HCF of 28 and 35.
  6. 6.15% of a number is 57. What is the number?
  7. 7.13 + 6 × 8 − 9 =
  8. 8.Find the LCM of 10, 2 and 9.
  9. 9.81 ÷ 9 × 3 + 22 =
  10. 10.Find the LCM of 3, 6 and 4.
  11. 11.Round 93.18 to one decimal place. =
  12. 12.What is 20% of 515?
  13. 13.Divide ₹120 between Tara and Ananya in the ratio 1 : 5. How much does Ananya get (in ₹)?
  14. 14.Two tanks hold 280 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  15. 15.Two tanks hold 315 litres and 270 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  16. 16.Which is closest to 1192 ÷ 39? (a) 30 (b) 300 (c) 15 (d) 60
  17. 17.2/3 × 4/12 =
  18. 18.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  19. 19.6 ÷ 3 × 3 + 13 =
  20. 20.The HCF of two numbers is 2 and their LCM is 42. One of the numbers is 6. What is the other number?
  21. 21.The HCF of two numbers is 3 and their LCM is 18. One of the numbers is 6. What is the other number?
  22. 22.57 − 10 ÷ 2 × 5 =
  23. 23.Find the LCM of 24 and 42.
  24. 24.Divide ₹423 between Manav and Ananya in the ratio 2 : 7. How much does Ananya get (in ₹)?
  25. 25.If 4 mangoes cost ₹76, how much do 8 mangoes cost (in ₹)?
  26. 26.A hall floor is 240 cm long and 200 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  27. 27.A car goes 160 km on 10 litres of petrol. How far can it go on 34 litres (in km)?
  28. 28.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  29. 29.2 : 3 = 4 : ?
  30. 30.A hall floor is 80 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  31. 31.12% of a number is 15. What is the number?
  32. 32.What is the smallest number you must take away from 580 so that it divides exactly by 11?
  33. 33.20% of a number is 73. What is the number?
  34. 34.If 3 erasers cost ₹12, how much do 12 erasers cost (in ₹)?
  35. 35.Round 12541 to the nearest ten.
  36. 36.What percent of 20 is 11?
  37. 37.32 + 6 × 4 − 27 =
  38. 38.What is the smallest number you must take away from 510 so that it divides exactly by 8?
  39. 39.What percent of 400 is 8?
  40. 40.What percent of 80 is 52?

Answer key

  1. 280
  2. 80
  3. 37
  4. 2/5
  5. 7
  6. 380
  7. 52
  8. 90
  9. 49
  10. 12
  11. 93.2
  12. 103
  13. 100
  14. 40
  15. 45
  16. 30
  17. 2/9
  18. 75
  19. 19
  20. 14
  21. 9
  22. 32
  23. 168
  24. 329
  25. 152
  26. 30
  27. 544
  28. 27
  29. 6
  30. 12
  31. 125
  32. 8
  33. 365
  34. 48
  35. 12540
  36. 55
  37. 29
  38. 6
  39. 2
  40. 65

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