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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 920 · 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.Write 1/4 as a percent.
  2. 2.How many factors does 32 have?
  3. 3.Find the HCF of 72 and 16.
  4. 4.Round 20.22 to one decimal place. =
  5. 5.What percent of 50 is 7?
  6. 6.What is 2/3 of 87 km?
  7. 7.The HCF of two numbers is 7 and their LCM is 147. One of the numbers is 21. What is the other number?
  8. 8.29 + 2 × 12 − 16 =
  9. 9.Which of these numbers divides exactly by 8? (a) 4110 (b) 1531 (c) 6000 (d) 2727
  10. 10.How many factors does 70 have?
  11. 11.1/4 of 8 + 3 × 5 =
  12. 12.Divide ₹672 between Aditya and Rohan in the ratio 9 : 5. How much does Rohan get (in ₹)?
  13. 13.Divide ₹329 between Aarav and Manav in the ratio 3 : 4. How much does Aarav get (in ₹)?
  14. 14.What is the smallest number you must add to 836 so that it divides exactly by 9?
  15. 15.Kavya scored 6 marks out of 40 in a test. What percentage did Kavya score?
  16. 16.39 − 28 ÷ 7 × 4 =
  17. 17.Find the HCF of 10 and 8.
  18. 18.2/9 − 1/10 =
  19. 19.What is the smallest number you must take away from 691 so that it divides exactly by 3?
  20. 20.What is 1/4 of ₹104?
  21. 21.Two tanks hold 90 litres and 50 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  22. 22.The ratio of boys to girls in a class is 3 : 2. There are 12 boys. How many girls are there?
  23. 23.How many factors does 48 have?
  24. 24.How many factors does 81 have?
  25. 25.If 12 notebooks cost ₹168, how much do 11 notebooks cost (in ₹)?
  26. 26.The ratio of boys to girls in a class is 6 : 7. There are 54 boys. How many girls are there?
  27. 27.Find the LCM of 35 and 30.
  28. 28.Find the HCF of 48 and 40.
  29. 29.14 − 24 ÷ 6 × 2 =
  30. 30.4/5 × 1/4 =
  31. 31.Which is closest to 599 × 81? (Round each number first.) (a) 96000 (b) 48000 (c) 480000 (d) 4800
  32. 32.4 painters can paint a school in 18 days. How many days would 8 painters take, working at the same speed?
  33. 33.Find the LCM of 5 and 4.
  34. 34.Find the HCF of 52 and 117.
  35. 35.84 − 36 ÷ 6 × 9 =
  36. 36.3 : 10 = 9 : ?
  37. 37.What is 15% of 300?
  38. 38.Which of these numbers divides exactly by 4? (a) 8609 (b) 1577 (c) 3320 (d) 3429
  39. 39.Farhan scored 22 marks out of 40 in a test. What percentage did Farhan score?
  40. 40.Which of these numbers divides exactly by 9? (a) 2977 (b) 8671 (c) 9120 (d) 7335

Answer key

  1. 25
  2. 6
  3. 8
  4. 20.2
  5. 14
  6. 58
  7. 49
  8. 37
  9. 6000
  10. 8
  11. 17
  12. 240
  13. 141
  14. 1
  15. 15
  16. 23
  17. 2
  18. 11/90
  19. 1
  20. 26
  21. 10
  22. 8
  23. 10
  24. 5
  25. 154
  26. 63
  27. 210
  28. 8
  29. 6
  30. 1/5
  31. 48000
  32. 9
  33. 20
  34. 13
  35. 30
  36. 30
  37. 45
  38. 3320
  39. 55
  40. 7335

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