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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 708 · 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.If 2 cricket balls cost ₹28, how much do 3 cricket balls cost (in ₹)?
  2. 2.Find the LCM of 16 and 10.
  3. 3.Three temple bells ring every 30, 9 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.42 + 12 × 3 − 3 =
  5. 5.Round 58.54 to one decimal place. =
  6. 6.20 + 2 × 11 − 20 =
  7. 7.A car goes 75 km on 3 litres of petrol. How far can it go on 25 litres (in km)?
  8. 8.Meera scored 4 marks out of 25 in a test. What percentage did Meera score?
  9. 9.120% of a number is 198. What is the number?
  10. 10.Which is closest to 201 + 297 + 99? (a) 600 (b) 500 (c) 700 (d) 800
  11. 11.If 7 kg of rice costs ₹280, how many kg can you buy for ₹360?
  12. 12.If 11 notebooks cost ₹407, how much do 10 notebooks cost (in ₹)?
  13. 13.9 : 4 = 54 : ?
  14. 14.3/4 − 4/7 =
  15. 15.1.26 + 9.4 =
  16. 16.(17 + 15) × 3 − 2 =
  17. 17.8 painters can paint a school in 18 days. How many days would 6 painters take, working at the same speed?
  18. 18.Sneha scored 16 marks out of 50 in a test. What percentage did Sneha score?
  19. 19.Which is closest to 96 + 404 + 898? (a) 1600 (b) 1400 (c) 1300 (d) 1500
  20. 20.Find the HCF of 16 and 56.
  21. 21.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 4, 3 or 15.
  22. 22.Which is closest to 401 + 296 + 798? (a) 1400 (b) 1600 (c) 1500 (d) 1700
  23. 23.Which is closest to 2092 ÷ 29? (a) 140 (b) 700 (c) 70 (d) 35
  24. 24.9 painters can paint a school in 8 days. How many days would 8 painters take, working at the same speed?
  25. 25.A car goes 63 km on 7 litres of petrol. How far can it go on 19 litres (in km)?
  26. 26.Round 28011 to the nearest ten.
  27. 27.2/3 − 2/5 =
  28. 28.120% of a number is 360. What is the number?
  29. 29.What percent of 20 is 17?
  30. 30.What is the smallest number you must take away from 543 so that it divides exactly by 11?
  31. 31.6.32 + 3.2 =
  32. 32.(6 + 13) × 8 − 7 =
  33. 33.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 5 or 3.
  34. 34.Find the third proportional to 3 and 12 (that is, 3 : 12 = 12 : ?).
  35. 35.Two tanks hold 60 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  36. 36.What is 4/5 of 115 kg?
  37. 37.If 7 kg of rice costs ₹392, how many kg can you buy for ₹504?
  38. 38.What is 10% of 170?
  39. 39.1/2 of 4 + 4 × 2 =
  40. 40.Which is closest to 995 ÷ 51? (a) 40 (b) 10 (c) 200 (d) 20

Answer key

  1. 42
  2. 80
  3. 90
  4. 75
  5. 58.5
  6. 22
  7. 625
  8. 16
  9. 165
  10. 600
  11. 9
  12. 370
  13. 24
  14. 5/28
  15. 10.66
  16. 94
  17. 24
  18. 32
  19. 1400
  20. 8
  21. 61
  22. 1500
  23. 70
  24. 9
  25. 171
  26. 28010
  27. 4/15
  28. 300
  29. 85
  30. 4
  31. 9.52
  32. 145
  33. 31
  34. 48
  35. 15
  36. 92
  37. 9
  38. 17
  39. 10
  40. 20

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