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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 235 · 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.A car goes 66 km on 6 litres of petrol. How far can it go on 11 litres (in km)?
  2. 2.16 ÷ 8 × 2 + 4 =
  3. 3.Divide ₹162 between Rohan and Farhan in the ratio 2 : 7. How much does Farhan get (in ₹)?
  4. 4.Diya scored 24 marks out of 40 in a test. What percentage did Diya score?
  5. 5.4/12 × 2/8 =
  6. 6.Write 7/25 as a percent.
  7. 7.Round 18.58 to one decimal place. =
  8. 8.Three temple bells ring every 12, 6 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.How many factors does 39 have?
  10. 10.The ratio of boys to girls in a class is 9 : 8. There are 36 boys. How many girls are there?
  11. 11.Three temple bells ring every 4, 12 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.Dev scored 8 marks out of 25 in a test. What percentage did Dev score?
  13. 13.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  14. 14.Three temple bells ring every 30, 24 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.Divide ₹135 between Diya and Kabir in the ratio 1 : 4. How much does Kabir get (in ₹)?
  16. 16.Divide ₹264 between Kabir and Farhan in the ratio 7 : 5. How much does Farhan get (in ₹)?
  17. 17.Which is closest to 1397 ÷ 19? (a) 70 (b) 700 (c) 35 (d) 140
  18. 18.Round 30.73 to one decimal place. =
  19. 19.12% of a number is 48. What is the number?
  20. 20.8 × (16 − 7) + 12 ÷ 4 =
  21. 21.9 painters can paint a school in 8 days. How many days would 3 painters take, working at the same speed?
  22. 22.A hostel has enough food for 7 students for 16 days. How many days will the same food last for 8 students?
  23. 23.Three temple bells ring every 4, 12 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  24. 24.What is 15% of 100?
  25. 25.Which is closest to 697 × 60? (Round each number first.) (a) 84000 (b) 4200 (c) 42000 (d) 420000
  26. 26.What is 1/2 of ₹22?
  27. 27.What is 2/3 of 60 litres?
  28. 28.Two tanks hold 80 litres and 70 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.Two tanks hold 30 litres and 105 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.Write 3/4 as a percent.
  31. 31.Divide ₹155 between Ananya and Arjun in the ratio 3 : 2. How much does Ananya get (in ₹)?
  32. 32.What is the smallest number you must add to 297 so that it divides exactly by 4?
  33. 33.55 ÷ 5 × 6 + 9 =
  34. 34.5.2 × 8 =
  35. 35.What is the smallest number you must add to 553 so that it divides exactly by 3?
  36. 36.How many factors does 17 have?
  37. 37.If 6 pencil boxes cost ₹300, how much do 5 pencil boxes cost (in ₹)?
  38. 38.Find the LCM of 9, 6 and 10.
  39. 39.3/7 × 7/8 =
  40. 40.Find the HCF of 26 and 65.

Answer key

  1. 121
  2. 8
  3. 126
  4. 60
  5. 1/12
  6. 28
  7. 18.6
  8. 60
  9. 4
  10. 32
  11. 60
  12. 32
  13. 27
  14. 120
  15. 108
  16. 110
  17. 70
  18. 30.7
  19. 400
  20. 75
  21. 24
  22. 14
  23. 60
  24. 15
  25. 42000
  26. 11
  27. 40
  28. 10
  29. 15
  30. 75
  31. 93
  32. 3
  33. 75
  34. 41.6
  35. 2
  36. 2
  37. 250
  38. 90
  39. 3/8
  40. 13

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