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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 735 · 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. 1.48 + 8 × 8 − 48 =
  2. 2.1/2 × 3/10 =
  3. 3.8 : 11 = 32 : ?
  4. 4.66 ÷ 6 × 4 + 1 =
  5. 5.Three temple bells ring every 6, 4 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.How many factors does 91 have?
  7. 7.150% of a number is 402. What is the number?
  8. 8.Sneha takes 40 seconds and Pooja 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?
  9. 9.3 : 6 = 9 : ?
  10. 10.Which is closest to 602 + 302 + 499? (a) 1500 (b) 1300 (c) 1400 (d) 1600
  11. 11.Find the LCM of 40 and 15.
  12. 12.What is 120% of 220?
  13. 13.Which of these numbers divides exactly by 11? (a) 8118 (b) 2709 (c) 7884 (d) 2828
  14. 14.7.3 × 9 =
  15. 15.What is the smallest number you must add to 751 so that it divides exactly by 6?
  16. 16.Divide ₹221 between Rohan and Aditya in the ratio 6 : 7. How much does Rohan get (in ₹)?
  17. 17.Rahul takes 54 seconds and Arjun takes 48 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?
  18. 18.Find the LCM of 11, 7 and 3.
  19. 19.What is the smallest number you must add to 385 so that it divides exactly by 12?
  20. 20.3.7 × 7 =
  21. 21.Find the LCM of 12, 6 and 8.
  22. 22.What is the smallest number you must add to 164 so that it divides exactly by 6?
  23. 23.4.34 + 3.4 =
  24. 24.What percent of 40 is 2?
  25. 25.Divide ₹638 between Saanvi and Meera in the ratio 6 : 5. How much does Saanvi get (in ₹)?
  26. 26.How many factors does 83 have?
  27. 27.What is the smallest number you must add to 532 so that it divides exactly by 9?
  28. 28.Which is closest to 2108 ÷ 29? (a) 700 (b) 140 (c) 35 (d) 70
  29. 29.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  30. 30.1.5 × 2 =
  31. 31.What percent of 250 is 55?
  32. 32.29 + 8 × 2 − 2 =
  33. 33.Which of these numbers divides exactly by 4? (a) 3111 (b) 2778 (c) 7854 (d) 4116
  34. 34.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  35. 35.28 + 3 × 8 − 4 =
  36. 36.The ratio of boys to girls in a class is 1 : 4. There are 5 boys. How many girls are there?
  37. 37.18 ÷ 9 × 7 + 4 =
  38. 38.What is 2/7 of 161 km?
  39. 39.How many factors does 38 have?
  40. 40.Find the HCF of 44 and 55.

Answer key

  1. 64
  2. 3/20
  3. 44
  4. 45
  5. 24
  6. 4
  7. 268
  8. 360
  9. 18
  10. 1400
  11. 120
  12. 264
  13. 8118
  14. 65.7
  15. 5
  16. 102
  17. 432
  18. 231
  19. 11
  20. 25.9
  21. 24
  22. 4
  23. 7.74
  24. 5
  25. 348
  26. 2
  27. 8
  28. 70
  29. 54
  30. 3
  31. 22
  32. 43
  33. 4116
  34. 64
  35. 48
  36. 20
  37. 18
  38. 46
  39. 4
  40. 11

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