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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 681 · 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.(12 + 10) × 6 − 1 =
  2. 2.If 9 notebooks cost ₹342, how much do 14 notebooks cost (in ₹)?
  3. 3.Find the HCF of 16 and 24.
  4. 4.Find the LCM of 8 and 10.
  5. 5.Round 97.24 to one decimal place. =
  6. 6.What is 25% of 240?
  7. 7.2/8 × 6/7 =
  8. 8.Three temple bells ring every 8, 18 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.If 3 bottles of juice cost ₹102, how much do 13 bottles of juice cost (in ₹)?
  10. 10.4/10 × 5/11 =
  11. 11.Divide ₹480 between Farhan and Isha in the ratio 5 : 3. How much does Farhan get (in ₹)?
  12. 12.How many factors does 42 have?
  13. 13.1/2 − 1/3 =
  14. 14.Find the LCM of 2, 14 and 5.
  15. 15.What is the smallest number you must take away from 910 so that it divides exactly by 11?
  16. 16.Two tanks hold 35 litres and 10 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  17. 17.A car goes 18 km on 2 litres of petrol. How far can it go on 27 litres (in km)?
  18. 18.If 5 kg of rice costs ₹230, how many kg can you buy for ₹368?
  19. 19.A hostel has enough food for 3 students for 15 days. How many days will the same food last for 5 students?
  20. 20.Find the LCM of 7, 2 and 10.
  21. 21.8/9 of 54 + 2 × 2 =
  22. 22.Round 29124 to the nearest ten.
  23. 23.2.6 × 3 =
  24. 24.12 ÷ 2 × 8 + 25 =
  25. 25.What is 30% of 540?
  26. 26.Divide ₹216 between Karan and Ananya in the ratio 7 : 2. How much does Karan get (in ₹)?
  27. 27.Which is closest to 203 × 32? (Round each number first.) (a) 12000 (b) 60000 (c) 6000 (d) 600
  28. 28.Two tanks hold 315 litres and 135 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.What is 5/6 of 60 km?
  30. 30.4/9 of 18 + 7 × 5 =
  31. 31.Two tanks hold 70 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  32. 32.What percent of 200 is 40?
  33. 33.Aarav takes 80 seconds and Aditya takes 90 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?
  34. 34.Which is closest to 303 × 88? (Round each number first.) (a) 2700 (b) 27000 (c) 54000 (d) 270000
  35. 35.How many factors does 57 have?
  36. 36.1.8 × 2 =
  37. 37.Aditya scored 22 marks out of 25 in a test. What percentage did Aditya score?
  38. 38.Find the HCF of 15 and 18.
  39. 39.4 : 9 = 32 : ?
  40. 40.A car goes 168 km on 7 litres of petrol. How far can it go on 14 litres (in km)?

Answer key

  1. 131
  2. 532
  3. 8
  4. 40
  5. 97.2
  6. 60
  7. 3/14
  8. 72
  9. 442
  10. 2/11
  11. 300
  12. 8
  13. 1/6
  14. 70
  15. 8
  16. 5
  17. 243
  18. 8
  19. 9
  20. 70
  21. 52
  22. 29120
  23. 7.8
  24. 73
  25. 162
  26. 168
  27. 6000
  28. 45
  29. 50
  30. 43
  31. 10
  32. 20
  33. 720
  34. 27000
  35. 4
  36. 3.6
  37. 88
  38. 3
  39. 72
  40. 336

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