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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 825 · 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 30 and 12.
  2. 2.Divide ₹162 between Farhan and Isha in the ratio 2 : 1. How much does Isha get (in ₹)?
  3. 3.What is 1/2 of ₹32?
  4. 4.Divide ₹180 between Rohan and Ishaan in the ratio 2 : 7. How much does Rohan get (in ₹)?
  5. 5.Find the third proportional to 5 and 25 (that is, 5 : 25 = 25 : ?).
  6. 6.25 ÷ 5 × 8 + 28 =
  7. 7.27 − 14 ÷ 7 × 5 =
  8. 8.Find the LCM of 12 and 10.
  9. 9.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  10. 10.Write 1/2 as a percent.
  11. 11.Tara scored 6 marks out of 40 in a test. What percentage did Tara score?
  12. 12.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  13. 13.Write 4/5 as a percent.
  14. 14.Divide ₹280 between Meera and Rohan in the ratio 1 : 6. How much does Rohan get (in ₹)?
  15. 15.Find the third proportional to 8 and 24 (that is, 8 : 24 = 24 : ?).
  16. 16.What percent of 50 is 5?
  17. 17.4 : 5 = 28 : ?
  18. 18.Round 39.14 to one decimal place. =
  19. 19.15.6 ÷ 3 =
  20. 20.38 + 5 × 8 − 24 =
  21. 21.Round 33342 to the nearest ten.
  22. 22.If 8 mangoes cost ₹232, how much do 10 mangoes cost (in ₹)?
  23. 23.Which of these numbers divides exactly by 8? (a) 3957 (b) 1530 (c) 4557 (d) 5112
  24. 24.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  25. 25.Which is closest to 402 × 61? (Round each number first.) (a) 240000 (b) 24000 (c) 48000 (d) 2400
  26. 26.32 + 4 × 2 − 6 =
  27. 27.What is the smallest number you must take away from 463 so that it divides exactly by 8?
  28. 28.1/4 × 10/12 =
  29. 29.What is the smallest number you must add to 763 so that it divides exactly by 3?
  30. 30.Two tanks hold 250 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  31. 31.If 3 mangoes cost ₹93, how much do 18 mangoes cost (in ₹)?
  32. 32.Divide ₹390 between Aarav and Zoya in the ratio 8 : 7. How much does Aarav get (in ₹)?
  33. 33.What percent of 40 is 4?
  34. 34.A car goes 27 km on 3 litres of petrol. How far can it go on 22 litres (in km)?
  35. 35.3 : 14 = 6 : ?
  36. 36.Round 19131 to the nearest hundred.
  37. 37.Find the LCM of 8, 12 and 10.
  38. 38.3/4 of 16 + 6 × 3 =
  39. 39.Two tanks hold 200 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.If 5 erasers cost ₹190, how much do 18 erasers cost (in ₹)?

Answer key

  1. 60
  2. 54
  3. 16
  4. 40
  5. 125
  6. 68
  7. 17
  8. 60
  9. 36
  10. 50
  11. 15
  12. 80
  13. 80
  14. 240
  15. 72
  16. 10
  17. 35
  18. 39.1
  19. 5.2
  20. 54
  21. 33340
  22. 290
  23. 5112
  24. 225
  25. 24000
  26. 34
  27. 7
  28. 5/24
  29. 2
  30. 50
  31. 558
  32. 208
  33. 10
  34. 198
  35. 28
  36. 19100
  37. 120
  38. 30
  39. 40
  40. 684

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