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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 963 · 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.The HCF of two numbers is 3 and their LCM is 105. One of the numbers is 15. What is the other number?
  2. 2.Which is closest to 3607 ÷ 41? (a) 900 (b) 180 (c) 45 (d) 90
  3. 3.What is the smallest number you must take away from 327 so that it divides exactly by 12?
  4. 4.If 9 kg of rice costs ₹738, how many kg can you buy for ₹902?
  5. 5.What is 7/10 of ₹50?
  6. 6.Round 64.93 to one decimal place. =
  7. 7.Write 3/4 as a percent.
  8. 8.Find the LCM of 5 and 3.
  9. 9.7 painters can paint a school in 14 days. How many days would 2 painters take, working at the same speed?
  10. 10.What percent of 80 is 48?
  11. 11.The ratio of boys to girls in a class is 2 : 7. There are 10 boys. How many girls are there?
  12. 12.Find the HCF of 120 and 75.
  13. 13.The ratio of boys to girls in a class is 9 : 1. There are 18 boys. How many girls are there?
  14. 14.1/2 + 2/3 =
  15. 15.If 6 kg of rice costs ₹486, how many kg can you buy for ₹810?
  16. 16.10 painters can paint a school in 26 days. How many days would 20 painters take, working at the same speed?
  17. 17.The HCF of two numbers is 2 and their LCM is 48. One of the numbers is 16. What is the other number?
  18. 18.What is the smallest number you must take away from 459 so that it divides exactly by 7?
  19. 19.The HCF of two numbers is 3 and their LCM is 135. One of the numbers is 27. What is the other number?
  20. 20.11/12 + 2/3 =
  21. 21.Rohan scored 3 marks out of 25 in a test. What percentage did Rohan score?
  22. 22.3/4 of 8 + 3 × 6 =
  23. 23.What is 1/6 of ₹66?
  24. 24.Find the HCF of 40 and 64.
  25. 25.The ratio of boys to girls in a class is 4 : 3. There are 40 boys. How many girls are there?
  26. 26.Two tanks hold 60 litres and 140 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  27. 27.2 : 13 = 6 : ?
  28. 28.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 12, 4 or 5.
  29. 29.Divide ₹322 between Vivaan and Pooja in the ratio 6 : 1. How much does Pooja get (in ₹)?
  30. 30.What is 60% of 240?
  31. 31.(3 + 13) × 4 − 1 =
  32. 32.Which is closest to 796 + 700 + 898? (a) 2300 (b) 2400 (c) 2600 (d) 2500
  33. 33.Find the HCF of 91 and 65.
  34. 34.120% of a number is 558. What is the number?
  35. 35.How many factors does 99 have?
  36. 36.Which is closest to 607 ÷ 29? (a) 40 (b) 10 (c) 200 (d) 20
  37. 37.Two tanks hold 125 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  38. 38.What is 15% of 400?
  39. 39.What is 20% of 110?
  40. 40.Find the HCF of 27 and 63.

Answer key

  1. 21
  2. 90
  3. 3
  4. 11
  5. 35
  6. 64.9
  7. 75
  8. 15
  9. 49
  10. 60
  11. 35
  12. 15
  13. 2
  14. 7/6
  15. 10
  16. 13
  17. 6
  18. 4
  19. 15
  20. 19/12
  21. 12
  22. 24
  23. 11
  24. 8
  25. 30
  26. 20
  27. 39
  28. 62
  29. 46
  30. 144
  31. 63
  32. 2400
  33. 13
  34. 465
  35. 6
  36. 20
  37. 25
  38. 60
  39. 22
  40. 9

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