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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 529 · 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.What percent of 200 is 176?
  2. 2.A car goes 48 km on 4 litres of petrol. How far can it go on 6 litres (in km)?
  3. 3.Round 22866 to the nearest hundred.
  4. 4.What is 1/2 of 8 litres?
  5. 5.What percent of 40 is 28?
  6. 6.What is 150% of 530?
  7. 7.Find the HCF of 15 and 20.
  8. 8.Which is closest to 1198 ÷ 21? (a) 120 (b) 30 (c) 60 (d) 600
  9. 9.How many factors does 14 have?
  10. 10.Which is closest to 102 + 200 + 802? (a) 1000 (b) 1200 (c) 1300 (d) 1100
  11. 11.5% of a number is 20. What is the number?
  12. 12.Round 49965 to the nearest hundred.
  13. 13.What percent of 250 is 65?
  14. 14.What percent of 50 is 17?
  15. 15.(20 + 4) × 2 − 6 =
  16. 16.18 ÷ 3 × 8 + 3 =
  17. 17.What is the smallest number you must add to 577 so that it divides exactly by 7?
  18. 18.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  19. 19.1/3 + 2/4 =
  20. 20.12 : 10 = 60 : ?
  21. 21.75% of a number is 435. What is the number?
  22. 22.Two tanks hold 200 litres and 160 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  23. 23.A car goes 120 km on 12 litres of petrol. How far can it go on 13 litres (in km)?
  24. 24.A hostel has enough food for 9 students for 6 days. How many days will the same food last for 2 students?
  25. 25.Which is closest to 900 × 51? (Round each number first.) (a) 450000 (b) 4500 (c) 90000 (d) 45000
  26. 26.3/7 − 1/4 =
  27. 27.A car goes 48 km on 6 litres of petrol. How far can it go on 26 litres (in km)?
  28. 28.Divide ₹352 between Dev and Aarav in the ratio 7 : 9. How much does Aarav get (in ₹)?
  29. 29.Two tanks hold 30 litres and 50 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.Find the LCM of 8 and 28.
  31. 31.Find the HCF of 20 and 35.
  32. 32.Find the LCM of 32 and 12.
  33. 33.The HCF of two numbers is 2 and their LCM is 12. One of the numbers is 6. What is the other number?
  34. 34.Find the smallest number bigger than 15 that leaves a remainder of 6 when divided by 10, 12 or 15.
  35. 35.Three temple bells ring every 6, 20 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.Find the HCF of 28 and 36.
  37. 37.Which is closest to 695 + 605 + 405? (a) 1900 (b) 1800 (c) 1600 (d) 1700
  38. 38.What is the smallest number you must add to 286 so that it divides exactly by 6?
  39. 39.A hall floor is 175 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  40. 40.34.5 ÷ 5 =

Answer key

  1. 88
  2. 72
  3. 22900
  4. 4
  5. 70
  6. 795
  7. 5
  8. 60
  9. 4
  10. 1100
  11. 400
  12. 50000
  13. 26
  14. 34
  15. 42
  16. 51
  17. 4
  18. 32
  19. 5/6
  20. 50
  21. 580
  22. 40
  23. 130
  24. 27
  25. 45000
  26. 5/28
  27. 208
  28. 198
  29. 10
  30. 56
  31. 5
  32. 96
  33. 4
  34. 66
  35. 120
  36. 4
  37. 1700
  38. 2
  39. 14
  40. 6.9

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