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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 297 · 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 60. What is the number?
  2. 2.Two tanks hold 60 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  3. 3.Round 78.93 to one decimal place. =
  4. 4.Three temple bells ring every 5, 12 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.Divide ₹296 between Diya and Priya in the ratio 7 : 1. How much does Priya get (in ₹)?
  6. 6.Which is closest to 2496 ÷ 51? (a) 50 (b) 500 (c) 100 (d) 25
  7. 7.The ratio of boys to girls in a class is 4 : 7. There are 24 boys. How many girls are there?
  8. 8.Find the LCM of 3, 6 and 10.
  9. 9.What is the smallest number you must add to 635 so that it divides exactly by 11?
  10. 10.Which is closest to 791 ÷ 21? (a) 40 (b) 80 (c) 20 (d) 400
  11. 11.12 painters can paint a school in 5 days. How many days would 10 painters take, working at the same speed?
  12. 12.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  13. 13.What is 80% of 290?
  14. 14.The HCF of two numbers is 3 and their LCM is 168. One of the numbers is 21. What is the other number?
  15. 15.The HCF of two numbers is 3 and their LCM is 84. One of the numbers is 21. What is the other number?
  16. 16.6.2 × 8 =
  17. 17.1/3 of 36 + 4 × 5 =
  18. 18.What percent of 50 is 33?
  19. 19.What is the smallest number you must take away from 770 so that it divides exactly by 8?
  20. 20.25% of a number is 88. What is the number?
  21. 21.35 + 9 × 8 − 12 =
  22. 22.10 : 11 = 90 : ?
  23. 23.40% of a number is 50. What is the number?
  24. 24.Manav scored 44 marks out of 80 in a test. What percentage did Manav score?
  25. 25.Aarav takes 30 seconds and Isha takes 50 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?
  26. 26.6.31 + 8.8 =
  27. 27.What is the smallest number you must add to 484 so that it divides exactly by 13?
  28. 28.Find the HCF of 9 and 12.
  29. 29.Find the LCM of 8, 6 and 2.
  30. 30.18 + 3 × 4 − 12 =
  31. 31.Round 52272 to the nearest hundred.
  32. 32.Tara scored 52 marks out of 80 in a test. What percentage did Tara score?
  33. 33.(8 + 9) × 6 − 9 =
  34. 34.Three temple bells ring every 6, 24 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  35. 35.Round 29719 to the nearest hundred.
  36. 36.44 + 4 × 9 − 3 =
  37. 37.108 − 27 ÷ 3 × 9 =
  38. 38.12% of a number is 66. What is the number?
  39. 39.A hall floor is 400 cm long and 250 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  40. 40.If 6 bottles of juice cost ₹288, how much do 13 bottles of juice cost (in ₹)?

Answer key

  1. 400
  2. 20
  3. 78.9
  4. 60
  5. 37
  6. 50
  7. 42
  8. 30
  9. 3
  10. 40
  11. 6
  12. 20
  13. 232
  14. 24
  15. 12
  16. 49.6
  17. 32
  18. 66
  19. 2
  20. 352
  21. 95
  22. 99
  23. 125
  24. 55
  25. 150
  26. 15.11
  27. 10
  28. 3
  29. 24
  30. 18
  31. 52300
  32. 65
  33. 93
  34. 120
  35. 29700
  36. 77
  37. 27
  38. 550
  39. 40
  40. 624

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