← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 434 · 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. 1.3/4 of 16 + 9 × 3 =
  2. 2.What is the smallest number you must add to 879 so that it divides exactly by 4?
  3. 3.How many factors does 99 have?
  4. 4.Find the HCF of 80 and 50.
  5. 5.Find the LCM of 8, 5 and 15.
  6. 6.46 − 25 ÷ 5 × 2 =
  7. 7.If 6 kg of rice costs ₹480, how many kg can you buy for ₹1200?
  8. 8.Round 66.39 to one decimal place. =
  9. 9.2 painters can paint a school in 25 days. How many days would 10 painters take, working at the same speed?
  10. 10.59 − 8 ÷ 2 × 8 =
  11. 11.A car goes 190 km on 10 litres of petrol. How far can it go on 12 litres (in km)?
  12. 12.If 4 kg of rice costs ₹256, how many kg can you buy for ₹384?
  13. 13.10% of a number is 56. What is the number?
  14. 14.1/3 + 8/12 =
  15. 15.What is 25% of 296?
  16. 16.A hall floor is 300 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  17. 17.Which of these numbers divides exactly by 8? (a) 2256 (b) 5318 (c) 3551 (d) 7555
  18. 18.What is the smallest number you must add to 855 so that it divides exactly by 13?
  19. 19.Find the smallest number bigger than 15 that leaves a remainder of 4 when divided by 9, 15 or 10.
  20. 20.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  21. 21.What percent of 200 is 40?
  22. 22.5 : 9 = 40 : ?
  23. 23.6 : 8 = 54 : ?
  24. 24.What is the smallest number you must add to 170 so that it divides exactly by 13?
  25. 25.How many factors does 21 have?
  26. 26.The ratio of boys to girls in a class is 2 : 1. There are 8 boys. How many girls are there?
  27. 27.A hall floor is 150 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  28. 28.Three temple bells ring every 24, 12 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  29. 29.A car goes 39 km on 3 litres of petrol. How far can it go on 34 litres (in km)?
  30. 30.Write 6/25 as a percent.
  31. 31.How many factors does 82 have?
  32. 32.What is the smallest number you must take away from 415 so that it divides exactly by 11?
  33. 33.28 − 14 ÷ 7 × 7 =
  34. 34.11.2 ÷ 7 =
  35. 35.Three temple bells ring every 24, 18 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.Three temple bells ring every 20, 24 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  37. 37.(17 + 16) × 2 − 23 =
  38. 38.What is the smallest number you must add to 537 so that it divides exactly by 7?
  39. 39.Write 4/5 as a percent.
  40. 40.What is 3/7 of ₹154?

Answer key

  1. 39
  2. 1
  3. 6
  4. 10
  5. 120
  6. 36
  7. 15
  8. 66.4
  9. 5
  10. 27
  11. 228
  12. 6
  13. 560
  14. 1
  15. 74
  16. 15
  17. 2256
  18. 3
  19. 94
  20. 32
  21. 20
  22. 72
  23. 72
  24. 12
  25. 4
  26. 4
  27. 10
  28. 72
  29. 442
  30. 24
  31. 4
  32. 8
  33. 14
  34. 1.6
  35. 72
  36. 120
  37. 43
  38. 2
  39. 80
  40. 66

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude