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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 587 · 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. 1.1/2 of 4 + 9 × 9 =
  2. 2.29 + 8 × 3 − 21 =
  3. 3.6 : 2 = 24 : ?
  4. 4.25% of a number is 65. What is the number?
  5. 5.The HCF of two numbers is 4 and their LCM is 60. One of the numbers is 20. What is the other number?
  6. 6.Find the HCF of 36 and 8.
  7. 7.Find the LCM of 42 and 30.
  8. 8.Find the smallest number bigger than 5 that leaves a remainder of 2 when divided by 5, 3 or 4.
  9. 9.What percent of 200 is 6?
  10. 10.What is 1/10 of 170 students?
  11. 11.(15 + 7) × 5 − 6 =
  12. 12.What is 10% of 220?
  13. 13.15% of a number is 12. What is the number?
  14. 14.What is the smallest number you must add to 911 so that it divides exactly by 7?
  15. 15.Diya scored 17 marks out of 25 in a test. What percentage did Diya score?
  16. 16.Write 1/5 as a percent.
  17. 17.Three temple bells ring every 6, 5 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  18. 18.Which is closest to 95 + 295 + 702? (a) 1000 (b) 1300 (c) 1100 (d) 1200
  19. 19.2/4 × 4/5 =
  20. 20.Saanvi takes 30 seconds and Kavya takes 40 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?
  21. 21.Diya scored 18 marks out of 25 in a test. What percentage did Diya score?
  22. 22.The HCF of two numbers is 4 and their LCM is 72. One of the numbers is 36. What is the other number?
  23. 23.Ishaan takes 40 seconds and Zoya 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?
  24. 24.The HCF of two numbers is 3 and their LCM is 72. One of the numbers is 9. What is the other number?
  25. 25.24 ÷ 6 × 3 + 3 =
  26. 26.Which is closest to 3009 ÷ 51? (a) 600 (b) 30 (c) 60 (d) 120
  27. 27.17 + 10 × 4 − 6 =
  28. 28.Which is closest to 396 × 19? (Round each number first.) (a) 80000 (b) 8000 (c) 800 (d) 16000
  29. 29.1/8 × 2/4 =
  30. 30.The HCF of two numbers is 9 and their LCM is 90. One of the numbers is 45. What is the other number?
  31. 31.What is 30% of 270?
  32. 32.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 15, 8 or 10.
  33. 33.(3 + 9) × 2 − 14 =
  34. 34.What is 3/7 of 147 litres?
  35. 35.What is the smallest number you must take away from 337 so that it divides exactly by 7?
  36. 36.Which is closest to 2005 ÷ 51? (a) 20 (b) 400 (c) 80 (d) 40
  37. 37.Divide ₹162 between Meera and Rahul in the ratio 4 : 5. How much does Meera get (in ₹)?
  38. 38.55.8 ÷ 6 =
  39. 39.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  40. 40.Aditya takes 40 seconds and Diya 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?

Answer key

  1. 83
  2. 32
  3. 8
  4. 260
  5. 12
  6. 4
  7. 210
  8. 62
  9. 3
  10. 17
  11. 104
  12. 22
  13. 80
  14. 6
  15. 68
  16. 20
  17. 90
  18. 1100
  19. 2/5
  20. 120
  21. 72
  22. 8
  23. 240
  24. 24
  25. 15
  26. 60
  27. 51
  28. 8000
  29. 1/16
  30. 18
  31. 81
  32. 122
  33. 10
  34. 63
  35. 1
  36. 40
  37. 72
  38. 9.3
  39. 75
  40. 360

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