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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 35 · 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.Which of these numbers divides exactly by 11? (a) 9351 (b) 2802 (c) 2353 (d) 4675
  2. 2.A car goes 152 km on 8 litres of petrol. How far can it go on 25 litres (in km)?
  3. 3.A car goes 300 km on 12 litres of petrol. How far can it go on 14 litres (in km)?
  4. 4.What is the smallest number you must add to 545 so that it divides exactly by 4?
  5. 5.4.8 × 7 =
  6. 6.What is the smallest number you must take away from 577 so that it divides exactly by 9?
  7. 7.Divide ₹344 between Karan and Ishaan in the ratio 3 : 5. How much does Ishaan get (in ₹)?
  8. 8.Round 57774 to the nearest ten.
  9. 9.25% of a number is 116. What is the number?
  10. 10.Find the LCM of 36 and 28.
  11. 11.Write 2/5 as a percent.
  12. 12.Three temple bells ring every 24, 15 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  13. 13.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  14. 14.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 10, 9 or 3.
  15. 15.Rahul scored 16 marks out of 80 in a test. What percentage did Rahul score?
  16. 16.2/4 × 5/11 =
  17. 17.Find the LCM of 15 and 25.
  18. 18.A hall floor is 350 cm long and 250 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  19. 19.The HCF of two numbers is 5 and their LCM is 30. One of the numbers is 15. What is the other number?
  20. 20.(5 + 7) × 7 − 29 =
  21. 21.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 8, 9 or 4.
  22. 22.What is 30% of 140?
  23. 23.63 ÷ 9 × 3 + 15 =
  24. 24.14 + 12 × 5 − 9 =
  25. 25.How many factors does 34 have?
  26. 26.Round 10366 to the nearest hundred.
  27. 27.A car goes 180 km on 12 litres of petrol. How far can it go on 7 litres (in km)?
  28. 28.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 5, 10 or 12.
  29. 29.Meera scored 2 marks out of 25 in a test. What percentage did Meera score?
  30. 30.Find the LCM of 7, 3 and 2.
  31. 31.If 4 kg of rice costs ₹208, how many kg can you buy for ₹780?
  32. 32.Find the smallest number bigger than 6 that leaves a remainder of 2 when divided by 4, 6 or 5.
  33. 33.11 : 7 = 22 : ?
  34. 34.How many factors does 74 have?
  35. 35.What is the smallest number you must add to 571 so that it divides exactly by 4?
  36. 36.Two tanks hold 70 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  37. 37.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  38. 38.The ratio of boys to girls in a class is 1 : 2. There are 9 boys. How many girls are there?
  39. 39.Find the LCM of 5, 6 and 8.
  40. 40.3/8 × 1/6 =

Answer key

  1. 4675
  2. 475
  3. 350
  4. 3
  5. 33.6
  6. 1
  7. 215
  8. 57770
  9. 464
  10. 252
  11. 40
  12. 120
  13. 45
  14. 92
  15. 20
  16. 5/22
  17. 75
  18. 35
  19. 10
  20. 55
  21. 74
  22. 42
  23. 36
  24. 65
  25. 4
  26. 10400
  27. 105
  28. 62
  29. 8
  30. 42
  31. 15
  32. 62
  33. 14
  34. 4
  35. 1
  36. 10
  37. 225
  38. 18
  39. 120
  40. 1/16

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