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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 124 · 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. 1.4/7 of 49 + 5 × 8 =
  2. 2.Which of these numbers divides exactly by 8? (a) 5302 (b) 9366 (c) 3350 (d) 5184
  3. 3.Three temple bells ring every 15, 12 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.2 : 13 = 12 : ?
  5. 5.What is the smallest number you must add to 188 so that it divides exactly by 3?
  6. 6.(19 + 2) × 2 − 8 =
  7. 7.Find the LCM of 11, 5 and 15.
  8. 8.2 × (12 − 2) + 40 ÷ 5 =
  9. 9.6 × (15 − 11) + 12 ÷ 4 =
  10. 10.A hostel has enough food for 11 students for 24 days. How many days will the same food last for 24 students?
  11. 11.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  12. 12.What is 1/6 of ₹156?
  13. 13.How many factors does 65 have?
  14. 14.3.35 + 1.6 =
  15. 15.Aditya takes 40 seconds and Tara takes 45 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?
  16. 16.A hostel has enough food for 3 students for 17 days. How many days will the same food last for 17 students?
  17. 17.What percent of 500 is 415?
  18. 18.3/4 × 1/2 =
  19. 19.34 − 24 ÷ 8 × 3 =
  20. 20.What is the smallest number you must add to 749 so that it divides exactly by 9?
  21. 21.What is the smallest number you must take away from 353 so that it divides exactly by 4?
  22. 22.How many factors does 19 have?
  23. 23.Round 98.33 to one decimal place. =
  24. 24.Find the third proportional to 8 and 24 (that is, 8 : 24 = 24 : ?).
  25. 25.Divide ₹741 between Kabir and Kavya in the ratio 4 : 9. How much does Kabir get (in ₹)?
  26. 26.The ratio of boys to girls in a class is 5 : 8. There are 25 boys. How many girls are there?
  27. 27.6 : 12 = 54 : ?
  28. 28.Two tanks hold 120 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.49 ÷ 7 × 7 + 23 =
  30. 30.Which is closest to 398 × 68? (Round each number first.) (a) 2800 (b) 28000 (c) 56000 (d) 280000
  31. 31.Which of these numbers divides exactly by 11? (a) 7076 (b) 8448 (c) 7259 (d) 4566
  32. 32.Three temple bells ring every 8, 18 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  33. 33.Two tanks hold 225 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  34. 34.Find the LCM of 2, 6 and 11.
  35. 35.What is the smallest number you must add to 261 so that it divides exactly by 6?
  36. 36.How many factors does 34 have?
  37. 37.2/3 × 1/5 =
  38. 38.(20 + 11) × 9 − 9 =
  39. 39.Which is closest to 799 ÷ 19? (a) 400 (b) 80 (c) 40 (d) 20
  40. 40.Round 73294 to the nearest ten.

Answer key

  1. 68
  2. 5184
  3. 60
  4. 78
  5. 1
  6. 34
  7. 165
  8. 28
  9. 27
  10. 11
  11. 16
  12. 26
  13. 4
  14. 4.95
  15. 360
  16. 3
  17. 83
  18. 3/8
  19. 25
  20. 7
  21. 1
  22. 2
  23. 98.3
  24. 72
  25. 228
  26. 40
  27. 108
  28. 30
  29. 72
  30. 28000
  31. 8448
  32. 72
  33. 25
  34. 66
  35. 3
  36. 4
  37. 2/15
  38. 270
  39. 40
  40. 73290

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