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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 770 · 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.Round 29.19 to one decimal place. =
  2. 2.What is 3/5 of 50 kg?
  3. 3.Find the LCM of 3, 4 and 10.
  4. 4.1.61 + 5.9 =
  5. 5.Three temple bells ring every 6, 24 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.Find the LCM of 18 and 16.
  7. 7.Find the LCM of 4, 6 and 14.
  8. 8.Find the LCM of 2, 15 and 10.
  9. 9.Round 11775 to the nearest thousand.
  10. 10.3.45 + 1.5 =
  11. 11.7 − 10 ÷ 5 × 3 =
  12. 12.10/11 − 2/5 =
  13. 13.Divide ₹297 between Ananya and Kabir in the ratio 8 : 1. How much does Ananya get (in ₹)?
  14. 14.69 − 32 ÷ 4 × 6 =
  15. 15.48 ÷ 6 × 5 + 25 =
  16. 16.Which of these numbers divides exactly by 4? (a) 8403 (b) 9115 (c) 9529 (d) 4300
  17. 17.1/10 + 3/7 =
  18. 18.What is the smallest number you must take away from 753 so that it divides exactly by 6?
  19. 19.Three temple bells ring every 24, 9 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  20. 20.7 × (16 − 7) + 35 ÷ 5 =
  21. 21.6 : 2 = 30 : ?
  22. 22.What percent of 400 is 260?
  23. 23.How many factors does 39 have?
  24. 24.5% of a number is 20. What is the number?
  25. 25.What is the smallest number you must add to 446 so that it divides exactly by 8?
  26. 26.Which is closest to 304 × 21? (Round each number first.) (a) 60000 (b) 12000 (c) 6000 (d) 600
  27. 27.Write 7/10 as a percent.
  28. 28.19 − 8 ÷ 4 × 6 =
  29. 29.Three temple bells ring every 20, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  30. 30.What is 5% of 580?
  31. 31.10 painters can paint a school in 14 days. How many days would 4 painters take, working at the same speed?
  32. 32.7.8 × 4 =
  33. 33.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  34. 34.Find the LCM of 8 and 6.
  35. 35.Which of these numbers divides exactly by 6? (a) 1692 (b) 2779 (c) 1207 (d) 3433
  36. 36.If 2 kg of rice costs ₹172, how many kg can you buy for ₹430?
  37. 37.33 ÷ 6 =
  38. 38.Arjun takes 80 seconds and Kabir 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?
  39. 39.A car goes 90 km on 6 litres of petrol. How far can it go on 38 litres (in km)?
  40. 40.Find the HCF of 9 and 12.

Answer key

  1. 29.2
  2. 30
  3. 60
  4. 7.51
  5. 120
  6. 144
  7. 84
  8. 30
  9. 12000
  10. 4.95
  11. 1
  12. 28/55
  13. 264
  14. 21
  15. 65
  16. 4300
  17. 37/70
  18. 3
  19. 72
  20. 70
  21. 10
  22. 65
  23. 4
  24. 400
  25. 2
  26. 6000
  27. 70
  28. 7
  29. 60
  30. 29
  31. 35
  32. 31.2
  33. 144
  34. 24
  35. 1692
  36. 5
  37. 5.5
  38. 240
  39. 570
  40. 3

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