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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 244 · 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.If 5 kites cost ₹20, how much do 3 kites cost (in ₹)?
  2. 2.Rohan takes 50 seconds and Aarav 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?
  3. 3.Which is closest to 703 × 52? (Round each number first.) (a) 35000 (b) 3500 (c) 70000 (d) 350000
  4. 4.10 + 4 × 5 − 7 =
  5. 5.The ratio of boys to girls in a class is 1 : 3. There are 3 boys. How many girls are there?
  6. 6.8.6 × 2 =
  7. 7.If 9 kg of rice costs ₹234, how many kg can you buy for ₹52?
  8. 8.9 × (29 − 10) + 20 ÷ 5 =
  9. 9.36 ÷ 4 × 7 + 2 =
  10. 10.What is the smallest number you must take away from 397 so that it divides exactly by 12?
  11. 11.If 6 kg of rice costs ₹396, how many kg can you buy for ₹990?
  12. 12.1/3 − 3/12 =
  13. 13.Which is closest to 796 + 604 + 497? (a) 1800 (b) 1900 (c) 2000 (d) 2100
  14. 14.Find the LCM of 6 and 10.
  15. 15.40% of a number is 56. What is the number?
  16. 16.Which of these numbers divides exactly by 4? (a) 1769 (b) 7510 (c) 2797 (d) 2700
  17. 17.Write 9/10 as a percent.
  18. 18.(14 + 18) × 4 − 15 =
  19. 19.16 ÷ 8 × 8 + 10 =
  20. 20.The HCF of two numbers is 4 and their LCM is 40. One of the numbers is 20. What is the other number?
  21. 21.Tara scored 20 marks out of 50 in a test. What percentage did Tara score?
  22. 22.Three temple bells ring every 18, 15 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  23. 23.48 + 3 × 2 − 5 =
  24. 24.What is the smallest number you must add to 506 so that it divides exactly by 8?
  25. 25.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 6, 3 or 10.
  26. 26.Round 51.77 to one decimal place. =
  27. 27.Three temple bells ring every 4, 12 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  28. 28.(3 + 9) × 4 − 30 =
  29. 29.What is the smallest number you must add to 853 so that it divides exactly by 7?
  30. 30.2/10 × 1/5 =
  31. 31.How many factors does 70 have?
  32. 32.Round 65.56 to one decimal place. =
  33. 33.What is 15% of 600?
  34. 34.8 : 15 = 40 : ?
  35. 35.What is the smallest number you must add to 359 so that it divides exactly by 6?
  36. 36.How many factors does 86 have?
  37. 37.How many factors does 16 have?
  38. 38.6.5 × 7 =
  39. 39.If 6 kg of rice costs ₹228, how many kg can you buy for ₹418?
  40. 40.How many factors does 53 have?

Answer key

  1. 12
  2. 450
  3. 35000
  4. 23
  5. 9
  6. 17.2
  7. 2
  8. 175
  9. 65
  10. 1
  11. 15
  12. 1/12
  13. 1900
  14. 30
  15. 140
  16. 2700
  17. 90
  18. 113
  19. 26
  20. 8
  21. 40
  22. 90
  23. 49
  24. 6
  25. 32
  26. 51.8
  27. 24
  28. 18
  29. 1
  30. 1/25
  31. 8
  32. 65.6
  33. 90
  34. 75
  35. 1
  36. 4
  37. 5
  38. 45.5
  39. 11
  40. 2

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