← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 284 · 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 5 : 9. There are 50 boys. How many girls are there?
  2. 2.3 : 14 = 12 : ?
  3. 3.The ratio of boys to girls in a class is 1 : 7. There are 5 boys. How many girls are there?
  4. 4.Find the third proportional to 5 and 25 (that is, 5 : 25 = 25 : ?).
  5. 5.Divide ₹117 between Nisha and Arjun in the ratio 8 : 5. How much does Nisha get (in ₹)?
  6. 6.The ratio of boys to girls in a class is 1 : 3. There are 2 boys. How many girls are there?
  7. 7.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  8. 8.The ratio of boys to girls in a class is 7 : 8. There are 70 boys. How many girls are there?
  9. 9.7 : 15 = 21 : ?
  10. 10.6 : 8 = 24 : ?
  11. 11.Divide ₹513 between Diya and Rohan in the ratio 4 : 5. How much does Diya get (in ₹)?
  12. 12.The ratio of boys to girls in a class is 1 : 6. There are 5 boys. How many girls are there?
  13. 13.2 : 5 = 6 : ?
  14. 14.Divide ₹220 between Zoya and Tara in the ratio 3 : 2. How much does Zoya get (in ₹)?
  15. 15.9 : 3 = 36 : ?
  16. 16.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  17. 17.Find the third proportional to 8 and 40 (that is, 8 : 40 = 40 : ?).
  18. 18.The ratio of boys to girls in a class is 8 : 7. There are 32 boys. How many girls are there?
  19. 19.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  20. 20.Divide ₹352 between Farhan and Kabir in the ratio 4 : 7. How much does Kabir get (in ₹)?
  21. 21.The ratio of boys to girls in a class is 5 : 2. There are 20 boys. How many girls are there?
  22. 22.Divide ₹119 between Ishaan and Pooja in the ratio 6 : 1. How much does Ishaan get (in ₹)?
  23. 23.4 : 2 = 28 : ?
  24. 24.6 : 14 = 30 : ?
  25. 25.The ratio of boys to girls in a class is 9 : 5. There are 90 boys. How many girls are there?
  26. 26.9 : 12 = 27 : ?
  27. 27.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  28. 28.12 : 13 = 36 : ?
  29. 29.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  30. 30.The ratio of boys to girls in a class is 8 : 1. There are 16 boys. How many girls are there?
  31. 31.7 : 6 = 42 : ?
  32. 32.The ratio of boys to girls in a class is 7 : 2. There are 14 boys. How many girls are there?
  33. 33.The ratio of boys to girls in a class is 7 : 6. There are 35 boys. How many girls are there?
  34. 34.Divide ₹78 between Ananya and Tara in the ratio 5 : 1. How much does Ananya get (in ₹)?
  35. 35.9 : 6 = 45 : ?
  36. 36.The ratio of boys to girls in a class is 5 : 3. There are 25 boys. How many girls are there?
  37. 37.Divide ₹115 between Pooja and Saanvi in the ratio 4 : 1. How much does Saanvi get (in ₹)?
  38. 38.The ratio of boys to girls in a class is 9 : 1. There are 54 boys. How many girls are there?
  39. 39.The ratio of boys to girls in a class is 4 : 7. There are 40 boys. How many girls are there?
  40. 40.Divide ₹352 between Kabir and Ishaan in the ratio 4 : 7. How much does Kabir get (in ₹)?

Answer key

  1. 90
  2. 56
  3. 35
  4. 125
  5. 72
  6. 6
  7. 32
  8. 80
  9. 45
  10. 32
  11. 228
  12. 30
  13. 15
  14. 132
  15. 12
  16. 80
  17. 200
  18. 28
  19. 8
  20. 224
  21. 8
  22. 102
  23. 14
  24. 70
  25. 50
  26. 36
  27. 128
  28. 39
  29. 18
  30. 2
  31. 36
  32. 4
  33. 30
  34. 65
  35. 30
  36. 15
  37. 23
  38. 6
  39. 70
  40. 128

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