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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 425 · 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.Divide ₹85 between Farhan and Meera in the ratio 4 : 1. How much does Meera get (in ₹)?
  2. 2.39 ÷ 5 =
  3. 3.Find the LCM of 14 and 10.
  4. 4.A hostel has enough food for 3 students for 5 days. How many days will the same food last for 5 students?
  5. 5.9.03 + 1.3 =
  6. 6.Find the HCF of 24 and 56.
  7. 7.3/6 + 4/9 =
  8. 8.Which is closest to 196 × 82? (Round each number first.) (a) 1600 (b) 160000 (c) 32000 (d) 16000
  9. 9.What is the smallest number you must add to 490 so that it divides exactly by 13?
  10. 10.(14 + 14) × 2 − 24 =
  11. 11.Write 1/4 as a percent.
  12. 12.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  13. 13.Three temple bells ring every 4, 6 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.What is the smallest number you must take away from 460 so that it divides exactly by 7?
  15. 15.150% of a number is 330. What is the number?
  16. 16.4 : 9 = 20 : ?
  17. 17.What is the smallest number you must add to 376 so that it divides exactly by 13?
  18. 18.Round 86.13 to one decimal place. =
  19. 19.Find the LCM of 25 and 20.
  20. 20.A hall floor is 175 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  21. 21.150% of a number is 222. What is the number?
  22. 22.3/10 − 1/11 =
  23. 23.The ratio of boys to girls in a class is 2 : 7. There are 16 boys. How many girls are there?
  24. 24.How many factors does 60 have?
  25. 25.The HCF of two numbers is 5 and their LCM is 225. One of the numbers is 25. What is the other number?
  26. 26.64 ÷ 8 × 2 + 1 =
  27. 27.What percent of 40 is 16?
  28. 28.2 × (24 − 3) + 30 ÷ 6 =
  29. 29.Two tanks hold 80 litres and 280 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.1/3 × 3/4 =
  31. 31.(7 + 20) × 3 − 4 =
  32. 32.7 × (10 − 6) + 84 ÷ 7 =
  33. 33.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 9, 3 or 12.
  34. 34.35 − 15 ÷ 5 × 6 =
  35. 35.What is the smallest number you must take away from 896 so that it divides exactly by 13?
  36. 36.What is the smallest number you must add to 608 so that it divides exactly by 3?
  37. 37.2/9 × 1/3 =
  38. 38.12 ÷ 2 × 6 + 3 =
  39. 39.If 5 cricket balls cost ₹170, how much do 11 cricket balls cost (in ₹)?
  40. 40.3 painters can paint a school in 11 days. How many days would 11 painters take, working at the same speed?

Answer key

  1. 17
  2. 7.8
  3. 70
  4. 3
  5. 10.33
  6. 8
  7. 17/18
  8. 16000
  9. 4
  10. 32
  11. 25
  12. 8
  13. 36
  14. 5
  15. 220
  16. 45
  17. 1
  18. 86.1
  19. 100
  20. 42
  21. 148
  22. 23/110
  23. 56
  24. 12
  25. 45
  26. 17
  27. 40
  28. 47
  29. 40
  30. 1/4
  31. 77
  32. 40
  33. 37
  34. 17
  35. 12
  36. 1
  37. 2/27
  38. 39
  39. 374
  40. 3

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