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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 23 · 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 714 so that it divides exactly by 9?
  2. 2.If 7 kg of rice costs ₹462, how many kg can you buy for ₹990?
  3. 3.1/5 + 9/12 =
  4. 4.Which of these numbers divides exactly by 11? (a) 3853 (b) 3337 (c) 3961 (d) 3388
  5. 5.6 : 15 = 18 : ?
  6. 6.(15 + 15) × 5 − 4 =
  7. 7.5/7 × 5/11 =
  8. 8.What is 10% of 200?
  9. 9.Write 3/4 as a percent.
  10. 10.Round 1730 to the nearest hundred.
  11. 11.43 + 4 × 2 − 4 =
  12. 12.Dev scored 20 marks out of 40 in a test. What percentage did Dev score?
  13. 13.What is 15% of 600?
  14. 14.What is the smallest number you must add to 534 so that it divides exactly by 12?
  15. 15.The ratio of boys to girls in a class is 1 : 7. There are 6 boys. How many girls are there?
  16. 16.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  17. 17.How many factors does 22 have?
  18. 18.Find the HCF of 16 and 12.
  19. 19.8 : 11 = 40 : ?
  20. 20.6/7 × 3/11 =
  21. 21.37 + 6 × 3 − 8 =
  22. 22.Find the LCM of 30 and 36.
  23. 23.What is 60% of 285?
  24. 24.9.8 ÷ 2 =
  25. 25.Divide ₹767 between Meera and Sneha in the ratio 8 : 5. How much does Meera get (in ₹)?
  26. 26.Which of these numbers divides exactly by 11? (a) 8363 (b) 1017 (c) 1729 (d) 3102
  27. 27.4/7 of 84 + 4 × 7 =
  28. 28.If 8 kg of rice costs ₹656, how many kg can you buy for ₹902?
  29. 29.3/8 + 2/3 =
  30. 30.Which of these numbers divides exactly by 4? (a) 4508 (b) 3578 (c) 2593 (d) 5458
  31. 31.Three temple bells ring every 6, 8 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  32. 32.Two tanks hold 135 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  33. 33.What is the smallest number you must add to 794 so that it divides exactly by 11?
  34. 34.Divide ₹448 between Kavya and Ishaan in the ratio 9 : 5. How much does Ishaan get (in ₹)?
  35. 35.What is 12% of 500?
  36. 36.A car goes 121 km on 11 litres of petrol. How far can it go on 37 litres (in km)?
  37. 37.Two tanks hold 175 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  38. 38.Two tanks hold 35 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  39. 39.If 10 pens cost ₹150, how much do 4 pens cost (in ₹)?
  40. 40.Find the LCM of 18 and 14.

Answer key

  1. 3
  2. 15
  3. 19/20
  4. 3388
  5. 45
  6. 146
  7. 25/77
  8. 20
  9. 75
  10. 1700
  11. 47
  12. 50
  13. 90
  14. 6
  15. 42
  16. 24
  17. 4
  18. 4
  19. 55
  20. 18/77
  21. 47
  22. 180
  23. 171
  24. 4.9
  25. 472
  26. 3102
  27. 76
  28. 11
  29. 25/24
  30. 4508
  31. 120
  32. 15
  33. 9
  34. 160
  35. 60
  36. 407
  37. 25
  38. 5
  39. 60
  40. 126

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