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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 634 · 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.What is the smallest number you must take away from 781 so that it divides exactly by 13?
  2. 2.Which is closest to 898 + 597 + 601? (a) 2000 (b) 2300 (c) 2100 (d) 2200
  3. 3.What is 15% of 40?
  4. 4.Two tanks hold 140 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  5. 5.Three temple bells ring every 18, 6 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.28 − 42 ÷ 6 × 3 =
  7. 7.(2 + 17) × 8 − 1 =
  8. 8.A hall floor is 100 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  9. 9.6 : 8 = 12 : ?
  10. 10.Write 9/10 as a percent.
  11. 11.Find the LCM of 4 and 18.
  12. 12.If 4 bottles of juice cost ₹172, how much do 6 bottles of juice cost (in ₹)?
  13. 13.The HCF of two numbers is 4 and their LCM is 144. One of the numbers is 16. What is the other number?
  14. 14.Which is closest to 701 × 18? (Round each number first.) (a) 1400 (b) 140000 (c) 28000 (d) 14000
  15. 15.The HCF of two numbers is 2 and their LCM is 12. One of the numbers is 4. What is the other number?
  16. 16.Write 1/2 as a percent.
  17. 17.2/5 of 55 + 5 × 4 =
  18. 18.If 6 kg of rice costs ₹120, how many kg can you buy for ₹220?
  19. 19.Divide ₹616 between Pooja and Ishaan in the ratio 5 : 9. How much does Pooja get (in ₹)?
  20. 20.How many factors does 60 have?
  21. 21.What is the smallest number you must add to 301 so that it divides exactly by 6?
  22. 22.1/3 + 1/7 =
  23. 23.Find the LCM of 12 and 54.
  24. 24.8 painters can paint a school in 29 days. How many days would 4 painters take, working at the same speed?
  25. 25.Which is closest to 2008 ÷ 49? (a) 20 (b) 80 (c) 400 (d) 40
  26. 26.What is the smallest number you must take away from 978 so that it divides exactly by 4?
  27. 27.What is 1/3 of ₹54?
  28. 28.What is the smallest number you must add to 557 so that it divides exactly by 4?
  29. 29.(11 + 3) × 5 − 1 =
  30. 30.24 − 54 ÷ 9 × 2 =
  31. 31.5/12 + 1/3 =
  32. 32.What percent of 80 is 16?
  33. 33.What is the smallest number you must add to 225 so that it divides exactly by 8?
  34. 34.What percent of 40 is 22?
  35. 35.How many factors does 89 have?
  36. 36.Which of these numbers divides exactly by 11? (a) 8283 (b) 3947 (c) 9594 (d) 7824
  37. 37.Round 3924 to the nearest ten.
  38. 38.Which is closest to 797 + 805 + 698? (a) 2400 (b) 2200 (c) 2300 (d) 2500
  39. 39.What is 75% of 536?
  40. 40.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).

Answer key

  1. 1
  2. 2100
  3. 6
  4. 20
  5. 72
  6. 7
  7. 151
  8. 20
  9. 16
  10. 90
  11. 36
  12. 258
  13. 36
  14. 14000
  15. 6
  16. 50
  17. 42
  18. 11
  19. 220
  20. 12
  21. 5
  22. 10/21
  23. 108
  24. 58
  25. 40
  26. 2
  27. 18
  28. 3
  29. 69
  30. 12
  31. 3/4
  32. 20
  33. 7
  34. 55
  35. 2
  36. 8283
  37. 3920
  38. 2300
  39. 402
  40. 27

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