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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 282 · 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.Find the LCM of 12 and 18.
  2. 2.Which is closest to 302 + 697 + 596? (a) 1700 (b) 1800 (c) 1600 (d) 1500
  3. 3.Find the HCF of 12 and 54.
  4. 4.Divide ₹330 between Aditya and Tara in the ratio 7 : 4. How much does Aditya get (in ₹)?
  5. 5.3.1 × 3 =
  6. 6.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 10, 12 or 3.
  7. 7.Three temple bells ring every 15, 6 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  8. 8.What is the smallest number you must add to 439 so that it divides exactly by 13?
  9. 9.What percent of 80 is 20?
  10. 10.What is the smallest number you must take away from 904 so that it divides exactly by 11?
  11. 11.If 3 cricket balls cost ₹114, how much do 11 cricket balls cost (in ₹)?
  12. 12.Find the LCM of 48 and 42.
  13. 13.What is 6/7 of 182 students?
  14. 14.Tara takes 45 seconds and Nisha takes 30 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?
  15. 15.The HCF of two numbers is 8 and their LCM is 96. One of the numbers is 32. What is the other number?
  16. 16.29 − 18 ÷ 6 × 7 =
  17. 17.How many factors does 66 have?
  18. 18.6 : 3 = 48 : ?
  19. 19.What percent of 25 is 4?
  20. 20.Three temple bells ring every 4, 24 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.What is 25% of 344?
  22. 22.10 + 3 × 3 − 6 =
  23. 23.3 painters can paint a school in 19 days. How many days would 19 painters take, working at the same speed?
  24. 24.Nisha takes 60 seconds and Pooja 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?
  25. 25.Isha takes 45 seconds and Pooja 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?
  26. 26.Find the LCM of 42 and 54.
  27. 27.What is 1/4 of 60 km?
  28. 28.40% of a number is 112. What is the number?
  29. 29.Find the HCF of 56 and 72.
  30. 30.(12 + 4) × 2 − 16 =
  31. 31.7.48 + 1.5 =
  32. 32.6.27 + 9.1 =
  33. 33.Which is closest to 798 + 797 + 496? (a) 2000 (b) 2300 (c) 2200 (d) 2100
  34. 34.Divide ₹336 between Ishaan and Sneha in the ratio 5 : 9. How much does Ishaan get (in ₹)?
  35. 35.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 9, 12 or 3.
  36. 36.5/8 + 2/5 =
  37. 37.(18 + 9) × 4 − 7 =
  38. 38.The HCF of two numbers is 4 and their LCM is 72. One of the numbers is 36. What is the other number?
  39. 39.Which of these numbers divides exactly by 3? (a) 7502 (b) 3111 (c) 9038 (d) 9617
  40. 40.What is the smallest number you must add to 245 so that it divides exactly by 12?

Answer key

  1. 36
  2. 1600
  3. 6
  4. 210
  5. 9.3
  6. 61
  7. 30
  8. 3
  9. 25
  10. 2
  11. 418
  12. 336
  13. 156
  14. 90
  15. 24
  16. 8
  17. 8
  18. 24
  19. 16
  20. 120
  21. 86
  22. 13
  23. 3
  24. 300
  25. 720
  26. 378
  27. 15
  28. 280
  29. 8
  30. 16
  31. 8.98
  32. 15.37
  33. 2100
  34. 120
  35. 37
  36. 41/40
  37. 101
  38. 8
  39. 3111
  40. 7

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