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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 131 · 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.(18 + 10) × 3 − 6 =
  2. 2.What is the smallest number you must add to 760 so that it divides exactly by 6?
  3. 3.Tara scored 56 marks out of 80 in a test. What percentage did Tara score?
  4. 4.What is 2/5 of ₹75?
  5. 5.Find the smallest number bigger than 12 that leaves a remainder of 3 when divided by 12, 4 or 6.
  6. 6.Find the LCM of 10 and 25.
  7. 7.48 ÷ 6 × 2 + 16 =
  8. 8.Find the HCF of 35 and 21.
  9. 9.A hostel has enough food for 4 students for 20 days. How many days will the same food last for 5 students?
  10. 10.What is the smallest number you must take away from 579 so that it divides exactly by 12?
  11. 11.Three temple bells ring every 10, 12 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.10% of a number is 10. What is the number?
  13. 13.If 4 kg of rice costs ₹208, how many kg can you buy for ₹104?
  14. 14.Find the LCM of 14 and 8.
  15. 15.Round 83.89 to one decimal place. =
  16. 16.Find the HCF of 40 and 25.
  17. 17.What is the smallest number you must take away from 303 so that it divides exactly by 4?
  18. 18.What percent of 80 is 12?
  19. 19.Find the LCM of 24 and 27.
  20. 20.5/9 of 27 + 6 × 7 =
  21. 21.12 + 12 × 6 − 1 =
  22. 22.6 × (14 − 6) + 6 ÷ 2 =
  23. 23.Two tanks hold 240 litres and 280 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  24. 24.Find the HCF of 6 and 8.
  25. 25.A car goes 162 km on 9 litres of petrol. How far can it go on 12 litres (in km)?
  26. 26.Two tanks hold 70 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  27. 27.The HCF of two numbers is 9 and their LCM is 315. One of the numbers is 63. What is the other number?
  28. 28.What is 12% of 425?
  29. 29.Find the HCF of 117 and 52.
  30. 30.Zoya takes 36 seconds and Dev takes 40 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  31. 31.2/9 + 1/4 =
  32. 32.What is 75% of 560?
  33. 33.68 − 42 ÷ 6 × 4 =
  34. 34.What percent of 250 is 130?
  35. 35.Write 3/20 as a percent.
  36. 36.If 9 cricket balls cost ₹468, how much do 15 cricket balls cost (in ₹)?
  37. 37.Find the LCM of 2, 15 and 6.
  38. 38.A car goes 72 km on 6 litres of petrol. How far can it go on 39 litres (in km)?
  39. 39.Round 1014 to the nearest ten.
  40. 40.3/4 − 2/10 =

Answer key

  1. 78
  2. 2
  3. 70
  4. 30
  5. 15
  6. 50
  7. 32
  8. 7
  9. 16
  10. 3
  11. 60
  12. 100
  13. 2
  14. 56
  15. 83.9
  16. 5
  17. 3
  18. 15
  19. 216
  20. 57
  21. 83
  22. 51
  23. 40
  24. 2
  25. 216
  26. 10
  27. 45
  28. 51
  29. 13
  30. 360
  31. 17/36
  32. 420
  33. 40
  34. 52
  35. 15
  36. 780
  37. 30
  38. 468
  39. 1010
  40. 11/20

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