← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 806 · 40 questions
TalentJR

The method (One part): Divide in a ratio a : b: one part = total ÷ (a + b); shares are a parts and b parts. If you know one share, one part = that share ÷ its number of parts. Proportion a : b = c : d means a × d = b × c (fourth proportional d = b × c ÷ a; third proportional to a and b is b × b ÷ a).

NameDateTime takenScore ___ / 40
  1. 1.Divide ₹170 between Pooja and Kabir in the ratio 9 : 1. How much does Kabir get (in ₹)?
  2. 2.10 : 5 = 50 : ?
  3. 3.The ratio of boys to girls in a class is 8 : 5. There are 80 boys. How many girls are there?
  4. 4.Divide ₹49 between Ananya and Isha in the ratio 6 : 1. How much does Isha get (in ₹)?
  5. 5.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  6. 6.The ratio of boys to girls in a class is 3 : 1. There are 9 boys. How many girls are there?
  7. 7.The ratio of boys to girls in a class is 7 : 1. There are 42 boys. How many girls are there?
  8. 8.The ratio of boys to girls in a class is 3 : 1. There are 18 boys. How many girls are there?
  9. 9.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  10. 10.Divide ₹255 between Kabir and Farhan in the ratio 4 : 1. How much does Farhan get (in ₹)?
  11. 11.Find the third proportional to 8 and 40 (that is, 8 : 40 = 40 : ?).
  12. 12.2 : 6 = 10 : ?
  13. 13.Divide ₹360 between Arjun and Isha in the ratio 3 : 5. How much does Arjun get (in ₹)?
  14. 14.The ratio of boys to girls in a class is 2 : 7. There are 8 boys. How many girls are there?
  15. 15.10 : 12 = 90 : ?
  16. 16.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  17. 17.10 : 6 = 20 : ?
  18. 18.8 : 13 = 16 : ?
  19. 19.10 : 3 = 80 : ?
  20. 20.Divide ₹128 between Meera and Ananya in the ratio 3 : 5. How much does Meera get (in ₹)?
  21. 21.10 : 14 = 50 : ?
  22. 22.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  23. 23.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  24. 24.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  25. 25.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  26. 26.8 : 2 = 48 : ?
  27. 27.Divide ₹42 between Ishaan and Diya in the ratio 4 : 3. How much does Diya get (in ₹)?
  28. 28.2 : 11 = 6 : ?
  29. 29.Find the third proportional to 7 and 35 (that is, 7 : 35 = 35 : ?).
  30. 30.2 : 7 = 6 : ?
  31. 31.Divide ₹390 between Rohan and Vivaan in the ratio 9 : 1. How much does Vivaan get (in ₹)?
  32. 32.Divide ₹288 between Dev and Arjun in the ratio 5 : 7. How much does Dev get (in ₹)?
  33. 33.12 : 8 = 60 : ?
  34. 34.Divide ₹180 between Zoya and Ananya in the ratio 4 : 1. How much does Zoya get (in ₹)?
  35. 35.6 : 5 = 42 : ?
  36. 36.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  37. 37.The ratio of boys to girls in a class is 3 : 1. There are 12 boys. How many girls are there?
  38. 38.The ratio of boys to girls in a class is 4 : 9. There are 32 boys. How many girls are there?
  39. 39.12 : 4 = 84 : ?
  40. 40.The ratio of boys to girls in a class is 7 : 3. There are 21 boys. How many girls are there?

Answer key

  1. 17
  2. 25
  3. 50
  4. 7
  5. 32
  6. 3
  7. 6
  8. 6
  9. 28
  10. 51
  11. 200
  12. 30
  13. 135
  14. 28
  15. 108
  16. 54
  17. 12
  18. 26
  19. 24
  20. 48
  21. 70
  22. 64
  23. 144
  24. 100
  25. 81
  26. 12
  27. 18
  28. 33
  29. 175
  30. 21
  31. 39
  32. 120
  33. 40
  34. 144
  35. 35
  36. 27
  37. 4
  38. 72
  39. 28
  40. 9

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude