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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 706 · 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. 1.6/8 + 2/3 =
  2. 2.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  3. 3.Three temple bells ring every 12, 10 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 4, 3 or 10.
  5. 5.What is 6/7 of 56 litres?
  6. 6.What percent of 80 is 28?
  7. 7.If 11 notebooks cost ₹198, how much do 5 notebooks cost (in ₹)?
  8. 8.1/8 of 72 + 3 × 5 =
  9. 9.Divide ₹164 between Manav and Saanvi in the ratio 1 : 3. How much does Manav get (in ₹)?
  10. 10.Find the HCF of 104 and 117.
  11. 11.If 9 kg of rice costs ₹279, how many kg can you buy for ₹310?
  12. 12.25 + 3 × 2 − 3 =
  13. 13.The ratio of boys to girls in a class is 2 : 5. There are 8 boys. How many girls are there?
  14. 14.Find the HCF of 12 and 15.
  15. 15.1/2 of 10 + 7 × 5 =
  16. 16.The HCF of two numbers is 9 and their LCM is 360. One of the numbers is 72. What is the other number?
  17. 17.Divide ₹77 between Meera and Ishaan in the ratio 7 : 4. How much does Ishaan get (in ₹)?
  18. 18.Which is closest to 100 + 504 + 99? (a) 900 (b) 600 (c) 800 (d) 700
  19. 19.Two tanks hold 10 litres and 35 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  20. 20.Two tanks hold 75 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  21. 21.Diya scored 8 marks out of 40 in a test. What percentage did Diya score?
  22. 22.1/5 + 1/6 =
  23. 23.The ratio of boys to girls in a class is 1 : 2. There are 2 boys. How many girls are there?
  24. 24.11 : 4 = 33 : ?
  25. 25.The ratio of boys to girls in a class is 3 : 8. There are 27 boys. How many girls are there?
  26. 26.What is 5/6 of 102 km?
  27. 27.Two tanks hold 80 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.What is the smallest number you must take away from 294 so that it divides exactly by 13?
  29. 29.Which is closest to 301 × 88? (Round each number first.) (a) 27000 (b) 54000 (c) 270000 (d) 2700
  30. 30.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  31. 31.Find the LCM of 5, 15 and 2.
  32. 32.The ratio of boys to girls in a class is 3 : 8. There are 18 boys. How many girls are there?
  33. 33.Aditya scored 9 marks out of 25 in a test. What percentage did Aditya score?
  34. 34.Find the HCF of 54 and 42.
  35. 35.8 × (29 − 19) + 44 ÷ 4 =
  36. 36.(4 + 2) × 4 − 11 =
  37. 37.A car goes 20 km on 2 litres of petrol. How far can it go on 21 litres (in km)?
  38. 38.Divide ₹550 between Pooja and Meera in the ratio 3 : 7. How much does Pooja get (in ₹)?
  39. 39.Rohan scored 10 marks out of 40 in a test. What percentage did Rohan score?
  40. 40.Find the LCM of 2, 10 and 8.

Answer key

  1. 17/12
  2. 18
  3. 60
  4. 61
  5. 48
  6. 35
  7. 90
  8. 24
  9. 41
  10. 13
  11. 10
  12. 28
  13. 20
  14. 3
  15. 40
  16. 45
  17. 28
  18. 700
  19. 5
  20. 15
  21. 20
  22. 11/30
  23. 4
  24. 12
  25. 72
  26. 85
  27. 40
  28. 8
  29. 27000
  30. 27
  31. 30
  32. 48
  33. 36
  34. 6
  35. 91
  36. 13
  37. 210
  38. 165
  39. 25
  40. 40

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