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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 215 · 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 240 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  2. 2.Which of these numbers divides exactly by 11? (a) 8715 (b) 7098 (c) 1419 (d) 8929
  3. 3.5 × (27 − 8) + 40 ÷ 4 =
  4. 4.8 × (26 − 23) + 54 ÷ 9 =
  5. 5.Two tanks hold 25 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  6. 6.The ratio of boys to girls in a class is 5 : 1. There are 20 boys. How many girls are there?
  7. 7.Divide ₹638 between Ananya and Manav in the ratio 8 : 3. How much does Ananya get (in ₹)?
  8. 8.Divide ₹110 between Kavya and Ishaan in the ratio 9 : 2. How much does Kavya get (in ₹)?
  9. 9.Find the LCM of 36 and 30.
  10. 10.Two tanks hold 200 litres and 225 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.The ratio of boys to girls in a class is 3 : 1. There are 12 boys. How many girls are there?
  12. 12.3/8 + 11/12 =
  13. 13.Divide ₹225 between Nisha and Kabir in the ratio 3 : 2. How much does Nisha get (in ₹)?
  14. 14.Find the LCM of 5 and 2.
  15. 15.Round 26302 to the nearest ten.
  16. 16.9.21 + 7.1 =
  17. 17.What is the smallest number you must add to 217 so that it divides exactly by 8?
  18. 18.Find the LCM of 25 and 35.
  19. 19.48 + 12 × 2 − 18 =
  20. 20.6/8 + 1/10 =
  21. 21.Which is closest to 597 × 38? (Round each number first.) (a) 48000 (b) 240000 (c) 2400 (d) 24000
  22. 22.Find the LCM of 2, 13 and 8.
  23. 23.5 × (15 − 12) + 18 ÷ 3 =
  24. 24.Which of these numbers divides exactly by 3? (a) 6996 (b) 9202 (c) 1705 (d) 2776
  25. 25.Isha scored 14 marks out of 20 in a test. What percentage did Isha score?
  26. 26.What is 1/7 of 168 km?
  27. 27.Which is closest to 399 × 22? (Round each number first.) (a) 80000 (b) 8000 (c) 16000 (d) 800
  28. 28.Find the HCF of 42 and 35.
  29. 29.Three temple bells ring every 6, 5 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  30. 30.3/4 − 2/7 =
  31. 31.Find the LCM of 24 and 18.
  32. 32.Find the LCM of 13, 2 and 4.
  33. 33.1/5 of 55 + 4 × 9 =
  34. 34.Three temple bells ring every 6, 10 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  35. 35.Which is closest to 1209 ÷ 21? (a) 120 (b) 60 (c) 30 (d) 600
  36. 36.Find the LCM of 12, 8 and 14.
  37. 37.Two tanks hold 100 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  38. 38.3 × (29 − 11) + 20 ÷ 4 =
  39. 39.Two tanks hold 180 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.Three temple bells ring every 24, 15 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?

Answer key

  1. 40
  2. 1419
  3. 105
  4. 30
  5. 5
  6. 4
  7. 464
  8. 90
  9. 180
  10. 25
  11. 4
  12. 31/24
  13. 135
  14. 10
  15. 26300
  16. 16.31
  17. 7
  18. 175
  19. 54
  20. 17/20
  21. 24000
  22. 104
  23. 21
  24. 6996
  25. 70
  26. 24
  27. 8000
  28. 7
  29. 90
  30. 13/28
  31. 72
  32. 52
  33. 47
  34. 30
  35. 60
  36. 168
  37. 20
  38. 59
  39. 20
  40. 120

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