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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 298 · 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. 1.25% of a number is 48. What is the number?
  2. 2.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  3. 3.3/12 − 1/5 =
  4. 4.Which is closest to 4501 ÷ 49? (a) 90 (b) 180 (c) 45 (d) 900
  5. 5.Find the LCM of 6, 12 and 14.
  6. 6.Which is closest to 598 × 49? (Round each number first.) (a) 60000 (b) 3000 (c) 300000 (d) 30000
  7. 7.Which of these numbers divides exactly by 4? (a) 8722 (b) 7062 (c) 4569 (d) 4648
  8. 8.Find the LCM of 42 and 30.
  9. 9.Find the HCF of 75 and 30.
  10. 10.What is the smallest number you must add to 545 so that it divides exactly by 8?
  11. 11.The ratio of boys to girls in a class is 2 : 3. There are 18 boys. How many girls are there?
  12. 12.A hall floor is 135 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  13. 13.5% of a number is 17. What is the number?
  14. 14.Three temple bells ring every 4, 9 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.Three temple bells ring every 12, 15 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  16. 16.Find the LCM of 2 and 3.
  17. 17.Write 1/5 as a percent.
  18. 18.Find the LCM of 45 and 35.
  19. 19.Which is closest to 602 + 700 + 598? (a) 1800 (b) 2000 (c) 1900 (d) 2100
  20. 20.36 ÷ 6 × 7 + 3 =
  21. 21.What is the smallest number you must add to 292 so that it divides exactly by 9?
  22. 22.Find the HCF of 40 and 15.
  23. 23.What is the smallest number you must take away from 164 so that it divides exactly by 3?
  24. 24.7 : 10 = 21 : ?
  25. 25.The HCF of two numbers is 9 and their LCM is 360. One of the numbers is 72. What is the other number?
  26. 26.A hall floor is 240 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  27. 27.Round 29852 to the nearest hundred.
  28. 28.If 12 kites cost ₹60, how much do 14 kites cost (in ₹)?
  29. 29.What is the smallest number you must add to 275 so that it divides exactly by 12?
  30. 30.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?
  31. 31.Which is closest to 1204 ÷ 21? (a) 60 (b) 30 (c) 600 (d) 120
  32. 32.Write 3/10 as a percent.
  33. 33.30 + 7 × 11 − 12 =
  34. 34.The HCF of two numbers is 3 and their LCM is 168. One of the numbers is 24. What is the other number?
  35. 35.Which of these numbers divides exactly by 4? (a) 2225 (b) 5490 (c) 2028 (d) 1593
  36. 36.2 : 7 = 4 : ?
  37. 37.Divide ₹520 between Arjun and Farhan in the ratio 9 : 1. How much does Farhan get (in ₹)?
  38. 38.Aditya scored 8 marks out of 25 in a test. What percentage did Aditya score?
  39. 39.If 7 pencil boxes cost ₹98, how much do 12 pencil boxes cost (in ₹)?
  40. 40.Which is closest to 197 × 19? (Round each number first.) (a) 4000 (b) 400 (c) 8000 (d) 40000

Answer key

  1. 192
  2. 16
  3. 1/20
  4. 90
  5. 84
  6. 30000
  7. 4648
  8. 210
  9. 15
  10. 7
  11. 27
  12. 6
  13. 340
  14. 36
  15. 60
  16. 6
  17. 20
  18. 315
  19. 1900
  20. 45
  21. 5
  22. 5
  23. 2
  24. 30
  25. 45
  26. 40
  27. 29900
  28. 70
  29. 1
  30. 72
  31. 60
  32. 30
  33. 95
  34. 21
  35. 2028
  36. 14
  37. 52
  38. 32
  39. 168
  40. 4000

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