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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 888 · 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 90.11 to one decimal place. =
  2. 2.62 − 48 ÷ 8 × 9 =
  3. 3.The ratio of boys to girls in a class is 8 : 3. There are 32 boys. How many girls are there?
  4. 4.Divide ₹364 between Rohan and Dev in the ratio 2 : 5. How much does Dev get (in ₹)?
  5. 5.Find the HCF of 98 and 70.
  6. 6.3 : 2 = 6 : ?
  7. 7.If 11 erasers cost ₹110, how much do 2 erasers cost (in ₹)?
  8. 8.7 painters can paint a school in 15 days. How many days would 15 painters take, working at the same speed?
  9. 9.11 painters can paint a school in 10 days. How many days would 10 painters take, working at the same speed?
  10. 10.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  11. 11.What is the smallest number you must take away from 126 so that it divides exactly by 8?
  12. 12.8/9 + 4/6 =
  13. 13.5/11 − 1/7 =
  14. 14.Find the LCM of 2 and 5.
  15. 15.Tara scored 28 marks out of 40 in a test. What percentage did Tara score?
  16. 16.Rohan takes 75 seconds and Pooja 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?
  17. 17.10 : 8 = 20 : ?
  18. 18.4/6 + 2/4 =
  19. 19.Round 17896 to the nearest ten.
  20. 20.What percent of 200 is 168?
  21. 21.Find the HCF of 48 and 42.
  22. 22.Which of these numbers divides exactly by 6? (a) 1250 (b) 4234 (c) 8694 (d) 7850
  23. 23.34.8 ÷ 6 =
  24. 24.What is 2/3 of 15 kg?
  25. 25.Three temple bells ring every 18, 4 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  26. 26.5.7 × 3 =
  27. 27.What is 1/2 of 38 kg?
  28. 28.15 ÷ 3 × 8 + 7 =
  29. 29.Which is closest to 2008 ÷ 51? (a) 40 (b) 80 (c) 20 (d) 400
  30. 30.Write 3/4 as a percent.
  31. 31.Find the HCF of 70 and 84.
  32. 32.Divide ₹374 between Farhan and Karan in the ratio 8 : 3. How much does Farhan get (in ₹)?
  33. 33.Meera scored 26 marks out of 40 in a test. What percentage did Meera score?
  34. 34.Which of these numbers divides exactly by 11? (a) 5440 (b) 9765 (c) 8415 (d) 3001
  35. 35.The HCF of two numbers is 2 and their LCM is 56. One of the numbers is 14. What is the other number?
  36. 36.Three temple bells ring every 15, 4 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  37. 37.Find the HCF of 55 and 33.
  38. 38.Round 35.28 to one decimal place. =
  39. 39.What is the smallest number you must take away from 643 so that it divides exactly by 11?
  40. 40.Find the smallest number bigger than 12 that leaves a remainder of 5 when divided by 12, 6 or 10.

Answer key

  1. 90.1
  2. 8
  3. 12
  4. 260
  5. 14
  6. 4
  7. 20
  8. 7
  9. 11
  10. 8
  11. 6
  12. 14/9
  13. 24/77
  14. 10
  15. 70
  16. 150
  17. 16
  18. 7/6
  19. 17900
  20. 84
  21. 6
  22. 8694
  23. 5.8
  24. 10
  25. 36
  26. 17.1
  27. 19
  28. 47
  29. 40
  30. 75
  31. 14
  32. 272
  33. 65
  34. 8415
  35. 8
  36. 120
  37. 11
  38. 35.3
  39. 5
  40. 65

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