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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 87 · 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. 1.36 − 14 ÷ 2 × 4 =
  2. 2.Find the HCF of 8 and 28.
  3. 3.What is the smallest number you must add to 704 so that it divides exactly by 3?
  4. 4.6/10 − 1/11 =
  5. 5.Dev scored 22 marks out of 50 in a test. What percentage did Dev score?
  6. 6.3 : 5 = 9 : ?
  7. 7.What is the smallest number you must take away from 444 so that it divides exactly by 13?
  8. 8.If 3 kg of rice costs ₹240, how many kg can you buy for ₹640?
  9. 9.If 12 pens cost ₹624, how much do 13 pens cost (in ₹)?
  10. 10.25 − 16 ÷ 8 × 6 =
  11. 11.What is 30% of 190?
  12. 12.29 − 21 ÷ 7 × 5 =
  13. 13.Round 70.57 to one decimal place. =
  14. 14.Which is closest to 301 × 82? (Round each number first.) (a) 24000 (b) 48000 (c) 240000 (d) 2400
  15. 15.What is the smallest number you must add to 600 so that it divides exactly by 7?
  16. 16.25% of a number is 112. What is the number?
  17. 17.What is the smallest number you must add to 748 so that it divides exactly by 3?
  18. 18.Find the smallest number bigger than 10 that leaves a remainder of 5 when divided by 6, 10 or 9.
  19. 19.Round 73311 to the nearest hundred.
  20. 20.Three temple bells ring every 5, 24 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.Which is closest to 3603 ÷ 39? (a) 900 (b) 90 (c) 180 (d) 45
  22. 22.What is 5/8 of ₹64?
  23. 23.8 painters can paint a school in 11 days. How many days would 2 painters take, working at the same speed?
  24. 24.A car goes 88 km on 8 litres of petrol. How far can it go on 28 litres (in km)?
  25. 25.Divide ₹238 between Aarav and Pooja in the ratio 3 : 4. How much does Pooja get (in ₹)?
  26. 26.Find the LCM of 9 and 7.
  27. 27.If 4 notebooks cost ₹160, how much do 6 notebooks cost (in ₹)?
  28. 28.Two tanks hold 20 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.If 9 kg of rice costs ₹225, how many kg can you buy for ₹250?
  30. 30.What is 2/3 of 69 kg?
  31. 31.Divide ₹330 between Kabir and Aarav in the ratio 7 : 4. How much does Aarav get (in ₹)?
  32. 32.Round 45.52 to one decimal place. =
  33. 33.1.8 × 3 =
  34. 34.A car goes 147 km on 7 litres of petrol. How far can it go on 13 litres (in km)?
  35. 35.Find the HCF of 12 and 14.
  36. 36.What is 2/3 of 39 km?
  37. 37.2/4 − 1/5 =
  38. 38.Find the smallest number bigger than 12 that leaves a remainder of 5 when divided by 12, 9 or 6.
  39. 39.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  40. 40.48 ÷ 6 × 2 + 13 =

Answer key

  1. 8
  2. 4
  3. 1
  4. 28/55
  5. 44
  6. 15
  7. 2
  8. 8
  9. 676
  10. 13
  11. 57
  12. 14
  13. 70.6
  14. 24000
  15. 2
  16. 448
  17. 2
  18. 95
  19. 73300
  20. 120
  21. 90
  22. 40
  23. 44
  24. 308
  25. 136
  26. 63
  27. 240
  28. 5
  29. 10
  30. 46
  31. 120
  32. 45.5
  33. 5.4
  34. 273
  35. 2
  36. 26
  37. 3/10
  38. 41
  39. 36
  40. 29

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