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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 649 · 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. 1.7.81 + 3.5 =
  2. 2.Divide ₹198 between Ananya and Rahul in the ratio 5 : 1. How much does Rahul get (in ₹)?
  3. 3.21 + 10 × 11 − 2 =
  4. 4.1/5 of 35 + 7 × 6 =
  5. 5.Find the HCF of 28 and 70.
  6. 6.How many factors does 23 have?
  7. 7.12% of a number is 33. What is the number?
  8. 8.What percent of 20 is 12?
  9. 9.How many factors does 67 have?
  10. 10.4.82 + 5.8 =
  11. 11.Nisha scored 18 marks out of 25 in a test. What percentage did Nisha score?
  12. 12.10 : 2 = 70 : ?
  13. 13.40% of a number is 144. What is the number?
  14. 14.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  15. 15.Aditya scored 14 marks out of 20 in a test. What percentage did Aditya score?
  16. 16.12 painters can paint a school in 19 days. How many days would 6 painters take, working at the same speed?
  17. 17.Two tanks hold 45 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  18. 18.1/4 − 2/9 =
  19. 19.The HCF of two numbers is 8 and their LCM is 96. One of the numbers is 24. What is the other number?
  20. 20.Find the LCM of 35 and 30.
  21. 21.What is the smallest number you must add to 923 so that it divides exactly by 11?
  22. 22.7.13 + 4.8 =
  23. 23.If 2 kg of rice costs ₹108, how many kg can you buy for ₹378?
  24. 24.Divide ₹126 between Farhan and Nisha in the ratio 5 : 2. How much does Nisha get (in ₹)?
  25. 25.(6 + 11) × 8 − 3 =
  26. 26.Three temple bells ring every 5, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.Round 34.37 to one decimal place. =
  28. 28.Three temple bells ring every 6, 15 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.14 ÷ 7 × 4 + 14 =
  30. 30.Which of these numbers divides exactly by 6? (a) 5849 (b) 1719 (c) 2076 (d) 7211
  31. 31.The ratio of boys to girls in a class is 1 : 6. There are 2 boys. How many girls are there?
  32. 32.What is the smallest number you must take away from 672 so that it divides exactly by 13?
  33. 33.How many factors does 74 have?
  34. 34.What is 1/3 of 30 students?
  35. 35.Which is closest to 608 ÷ 31? (a) 200 (b) 40 (c) 20 (d) 10
  36. 36.Two tanks hold 200 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  37. 37.15% of a number is 42. What is the number?
  38. 38.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 15, 6 or 8.
  39. 39.How many factors does 87 have?
  40. 40.Which is closest to 804 ÷ 41? (a) 200 (b) 40 (c) 20 (d) 10

Answer key

  1. 11.31
  2. 33
  3. 129
  4. 49
  5. 14
  6. 2
  7. 275
  8. 60
  9. 2
  10. 10.62
  11. 72
  12. 14
  13. 360
  14. 45
  15. 70
  16. 38
  17. 5
  18. 1/36
  19. 32
  20. 210
  21. 1
  22. 11.93
  23. 7
  24. 36
  25. 133
  26. 60
  27. 34.4
  28. 60
  29. 22
  30. 2076
  31. 12
  32. 9
  33. 4
  34. 10
  35. 20
  36. 25
  37. 280
  38. 123
  39. 4
  40. 20

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