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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 381 · 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 is the smallest number you must take away from 404 so that it divides exactly by 3?
  2. 2.Two tanks hold 160 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  3. 3.Three temple bells ring every 8, 12 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.What is the smallest number you must add to 729 so that it divides exactly by 7?
  5. 5.Find the smallest number bigger than 12 that leaves a remainder of 3 when divided by 9, 12 or 5.
  6. 6.Round 70061 to the nearest thousand.
  7. 7.Find the LCM of 5, 2 and 10.
  8. 8.Rohan scored 48 marks out of 80 in a test. What percentage did Rohan score?
  9. 9.Round 17.46 to one decimal place. =
  10. 10.8.68 + 1.2 =
  11. 11.Round 39.14 to one decimal place. =
  12. 12.What is 1/5 of ₹75?
  13. 13.Find the LCM of 15, 3 and 5.
  14. 14.Three temple bells ring every 12, 15 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.What is the smallest number you must add to 938 so that it divides exactly by 6?
  16. 16.2/9 + 4/10 =
  17. 17.Three temple bells ring every 10, 12 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  18. 18.Find the third proportional to 8 and 40 (that is, 8 : 40 = 40 : ?).
  19. 19.If 2 kg of rice costs ₹66, how many kg can you buy for ₹330?
  20. 20.A car goes 48 km on 4 litres of petrol. How far can it go on 24 litres (in km)?
  21. 21.54 − 54 ÷ 9 × 8 =
  22. 22.The ratio of boys to girls in a class is 9 : 4. There are 54 boys. How many girls are there?
  23. 23.If 7 kg of rice costs ₹231, how many kg can you buy for ₹99?
  24. 24.If 4 notebooks cost ₹216, how much do 11 notebooks cost (in ₹)?
  25. 25.8.6 × 8 =
  26. 26.A car goes 170 km on 10 litres of petrol. How far can it go on 16 litres (in km)?
  27. 27.Divide ₹420 between Ananya and Sneha in the ratio 2 : 5. How much does Ananya get (in ₹)?
  28. 28.Find the LCM of 2, 15 and 3.
  29. 29.If 9 kg of rice costs ₹765, how many kg can you buy for ₹425?
  30. 30.4.41 + 1.8 =
  31. 31.What is the smallest number you must take away from 325 so that it divides exactly by 4?
  32. 32.150% of a number is 807. What is the number?
  33. 33.Which of these numbers divides exactly by 4? (a) 5035 (b) 7480 (c) 6303 (d) 5311
  34. 34.27 − 4 ÷ 2 × 9 =
  35. 35.Find the LCM of 16 and 36.
  36. 36.39.6 ÷ 4 =
  37. 37.4 : 13 = 24 : ?
  38. 38.If 9 cricket balls cost ₹36, how much do 6 cricket balls cost (in ₹)?
  39. 39.What percent of 400 is 316?
  40. 40.Three temple bells ring every 6, 4 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?

Answer key

  1. 2
  2. 20
  3. 120
  4. 6
  5. 183
  6. 70000
  7. 10
  8. 60
  9. 17.5
  10. 9.88
  11. 39.1
  12. 15
  13. 15
  14. 60
  15. 4
  16. 28/45
  17. 60
  18. 200
  19. 10
  20. 288
  21. 6
  22. 24
  23. 3
  24. 594
  25. 68.8
  26. 272
  27. 120
  28. 30
  29. 5
  30. 6.21
  31. 1
  32. 538
  33. 7480
  34. 9
  35. 144
  36. 9.9
  37. 78
  38. 24
  39. 79
  40. 60

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