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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 689 · 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.Find the LCM of 15, 14 and 3.
  2. 2.Divide ₹190 between Tara and Diya in the ratio 3 : 7. How much does Tara get (in ₹)?
  3. 3.2 painters can paint a school in 11 days. How many days would 11 painters take, working at the same speed?
  4. 4.What is 20% of 175?
  5. 5.(5 + 19) × 3 − 13 =
  6. 6.85 − 16 ÷ 2 × 6 =
  7. 7.Vivaan takes 75 seconds and Tara takes 50 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?
  8. 8.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  9. 9.The ratio of boys to girls in a class is 7 : 3. There are 35 boys. How many girls are there?
  10. 10.Divide ₹120 between Dev and Kabir in the ratio 7 : 1. How much does Kabir get (in ₹)?
  11. 11.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  12. 12.Manav takes 50 seconds and Kabir takes 45 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?
  13. 13.A hostel has enough food for 12 students for 6 days. How many days will the same food last for 24 students?
  14. 14.Find the LCM of 8, 11 and 2.
  15. 15.Round 11057 to the nearest thousand.
  16. 16.What is the smallest number you must take away from 271 so that it divides exactly by 12?
  17. 17.Zoya scored 60 marks out of 80 in a test. What percentage did Zoya score?
  18. 18.7.66 + 2.2 =
  19. 19.A car goes 75 km on 5 litres of petrol. How far can it go on 2 litres (in km)?
  20. 20.What is 5% of 220?
  21. 21.Two tanks hold 90 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  22. 22.Which of these numbers divides exactly by 9? (a) 6300 (b) 1762 (c) 7088 (d) 1138
  23. 23.Two tanks hold 90 litres and 135 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  24. 24.If 9 notebooks cost ₹72, how much do 11 notebooks cost (in ₹)?
  25. 25.Find the LCM of 4, 12 and 8.
  26. 26.Which of these numbers divides exactly by 3? (a) 9695 (b) 6512 (c) 2228 (d) 5988
  27. 27.16 ÷ 4 × 3 + 25 =
  28. 28.35 + 2 × 5 − 23 =
  29. 29.Which of these numbers divides exactly by 4? (a) 3435 (b) 8479 (c) 7948 (d) 3775
  30. 30.Write 9/25 as a percent.
  31. 31.9 : 4 = 81 : ?
  32. 32.6/10 + 1/7 =
  33. 33.Write 3/5 as a percent.
  34. 34.What percent of 20 is 2?
  35. 35.Find the HCF of 40 and 24.
  36. 36.A hall floor is 60 cm long and 40 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.If 10 cricket balls cost ₹290, how much do 19 cricket balls cost (in ₹)?
  38. 38.11 painters can paint a school in 8 days. How many days would 4 painters take, working at the same speed?
  39. 39.The ratio of boys to girls in a class is 1 : 3. There are 7 boys. How many girls are there?
  40. 40.6 × (29 − 12) + 10 ÷ 2 =

Answer key

  1. 210
  2. 57
  3. 2
  4. 35
  5. 59
  6. 37
  7. 150
  8. 32
  9. 15
  10. 15
  11. 80
  12. 450
  13. 3
  14. 88
  15. 11000
  16. 7
  17. 75
  18. 9.86
  19. 30
  20. 11
  21. 30
  22. 6300
  23. 45
  24. 88
  25. 24
  26. 5988
  27. 37
  28. 22
  29. 7948
  30. 36
  31. 36
  32. 26/35
  33. 60
  34. 10
  35. 8
  36. 6
  37. 551
  38. 22
  39. 21
  40. 107

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