← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 120 · 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.The ratio of boys to girls in a class is 1 : 2. There are 5 boys. How many girls are there?
  2. 2.The ratio of boys to girls in a class is 7 : 3. There are 49 boys. How many girls are there?
  3. 3.Divide ₹180 between Kabir and Priya in the ratio 1 : 4. How much does Priya get (in ₹)?
  4. 4.Divide ₹231 between Kabir and Karan in the ratio 7 : 4. How much does Kabir get (in ₹)?
  5. 5.Find the third proportional to 8 and 40 (that is, 8 : 40 = 40 : ?).
  6. 6.The ratio of boys to girls in a class is 8 : 1. There are 64 boys. How many girls are there?
  7. 7.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  8. 8.6 : 4 = 48 : ?
  9. 9.The ratio of boys to girls in a class is 1 : 3. There are 4 boys. How many girls are there?
  10. 10.The ratio of boys to girls in a class is 6 : 1. There are 48 boys. How many girls are there?
  11. 11.Find the third proportional to 7 and 35 (that is, 7 : 35 = 35 : ?).
  12. 12.Divide ₹704 between Aarav and Sneha in the ratio 9 : 7. How much does Sneha get (in ₹)?
  13. 13.The ratio of boys to girls in a class is 1 : 7. There are 8 boys. How many girls are there?
  14. 14.5 : 2 = 40 : ?
  15. 15.Divide ₹506 between Karan and Ishaan in the ratio 3 : 8. How much does Karan get (in ₹)?
  16. 16.7 : 11 = 63 : ?
  17. 17.The ratio of boys to girls in a class is 9 : 7. There are 54 boys. How many girls are there?
  18. 18.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  19. 19.10 : 9 = 60 : ?
  20. 20.The ratio of boys to girls in a class is 7 : 4. There are 14 boys. How many girls are there?
  21. 21.Divide ₹240 between Priya and Sneha in the ratio 2 : 3. How much does Priya get (in ₹)?
  22. 22.2 : 14 = 4 : ?
  23. 23.Divide ₹600 between Saanvi and Meera in the ratio 1 : 9. How much does Saanvi get (in ₹)?
  24. 24.The ratio of boys to girls in a class is 2 : 7. There are 12 boys. How many girls are there?
  25. 25.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  26. 26.Divide ₹319 between Meera and Kavya in the ratio 5 : 6. How much does Meera get (in ₹)?
  27. 27.Divide ₹352 between Saanvi and Meera in the ratio 7 : 9. How much does Saanvi get (in ₹)?
  28. 28.Find the third proportional to 6 and 30 (that is, 6 : 30 = 30 : ?).
  29. 29.The ratio of boys to girls in a class is 4 : 9. There are 20 boys. How many girls are there?
  30. 30.The ratio of boys to girls in a class is 2 : 3. There are 12 boys. How many girls are there?
  31. 31.The ratio of boys to girls in a class is 1 : 9. There are 7 boys. How many girls are there?
  32. 32.12 : 13 = 96 : ?
  33. 33.10 : 7 = 60 : ?
  34. 34.The ratio of boys to girls in a class is 5 : 7. There are 20 boys. How many girls are there?
  35. 35.Divide ₹660 between Manav and Rohan in the ratio 2 : 9. How much does Rohan get (in ₹)?
  36. 36.The ratio of boys to girls in a class is 2 : 3. There are 4 boys. How many girls are there?
  37. 37.Divide ₹85 between Diya and Pooja in the ratio 3 : 2. How much does Diya get (in ₹)?
  38. 38.10 : 4 = 80 : ?
  39. 39.The ratio of boys to girls in a class is 6 : 7. There are 18 boys. How many girls are there?
  40. 40.Find the third proportional to 6 and 24 (that is, 6 : 24 = 24 : ?).

Answer key

  1. 10
  2. 21
  3. 144
  4. 147
  5. 200
  6. 8
  7. 16
  8. 32
  9. 12
  10. 8
  11. 175
  12. 308
  13. 56
  14. 16
  15. 138
  16. 99
  17. 42
  18. 12
  19. 54
  20. 8
  21. 96
  22. 28
  23. 60
  24. 42
  25. 64
  26. 145
  27. 154
  28. 150
  29. 45
  30. 18
  31. 63
  32. 104
  33. 42
  34. 28
  35. 540
  36. 6
  37. 51
  38. 32
  39. 21
  40. 96

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