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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 484 · 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.Find the LCM of 7, 12 and 6.
  2. 2.What percent of 40 is 16?
  3. 3.How many factors does 16 have?
  4. 4.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 5, 6 or 15.
  5. 5.Round 27118 to the nearest ten.
  6. 6.A hall floor is 75 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  7. 7.If 6 kg of rice costs ₹300, how many kg can you buy for ₹150?
  8. 8.A car goes 220 km on 11 litres of petrol. How far can it go on 5 litres (in km)?
  9. 9.21 + 12 × 5 − 21 =
  10. 10.What is the smallest number you must add to 551 so that it divides exactly by 13?
  11. 11.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  12. 12.Find the HCF of 12 and 10.
  13. 13.The HCF of two numbers is 5 and their LCM is 30. One of the numbers is 15. What is the other number?
  14. 14.What is the smallest number you must take away from 392 so that it divides exactly by 3?
  15. 15.Round 88183 to the nearest ten.
  16. 16.1/2 + 3/4 =
  17. 17.If 3 kites cost ₹129, how much do 9 kites cost (in ₹)?
  18. 18.What is 1/6 of ₹138?
  19. 19.1/5 of 25 + 3 × 8 =
  20. 20.33 + 2 × 4 − 10 =
  21. 21.8/10 × 1/2 =
  22. 22.1/3 of 6 + 6 × 5 =
  23. 23.Find the HCF of 117 and 91.
  24. 24.What is the smallest number you must take away from 265 so that it divides exactly by 3?
  25. 25.If 7 pencil boxes cost ₹308, how much do 5 pencil boxes cost (in ₹)?
  26. 26.Which of these numbers divides exactly by 4? (a) 6069 (b) 3076 (c) 1091 (d) 6099
  27. 27.1.7 × 7 =
  28. 28.Which is closest to 4001 ÷ 51? (a) 800 (b) 160 (c) 80 (d) 40
  29. 29.Which is closest to 599 × 29? (Round each number first.) (a) 1800 (b) 36000 (c) 18000 (d) 180000
  30. 30.Find the LCM of 35 and 25.
  31. 31.2/7 + 2/12 =
  32. 32.What is 1/7 of 42 students?
  33. 33.Three temple bells ring every 10, 12 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  34. 34.Find the HCF of 108 and 96.
  35. 35.What percent of 20 is 1?
  36. 36.How many factors does 34 have?
  37. 37.A car goes 132 km on 12 litres of petrol. How far can it go on 21 litres (in km)?
  38. 38.If 2 kg of rice costs ₹84, how many kg can you buy for ₹378?
  39. 39.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?
  40. 40.Which of these numbers divides exactly by 6? (a) 9902 (b) 8667 (c) 6612 (d) 1423

Answer key

  1. 84
  2. 40
  3. 5
  4. 31
  5. 27120
  6. 6
  7. 3
  8. 100
  9. 60
  10. 8
  11. 50
  12. 2
  13. 10
  14. 2
  15. 88180
  16. 5/4
  17. 387
  18. 23
  19. 29
  20. 31
  21. 2/5
  22. 32
  23. 13
  24. 1
  25. 220
  26. 3076
  27. 11.9
  28. 80
  29. 18000
  30. 175
  31. 19/42
  32. 6
  33. 60
  34. 12
  35. 5
  36. 4
  37. 231
  38. 9
  39. 42
  40. 6612

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