← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 917 · 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. 1.2 : 14 = 4 : ?
  2. 2.10 : 3 = 80 : ?
  3. 3.8 : 10 = 72 : ?
  4. 4.6 : 13 = 24 : ?
  5. 5.The ratio of boys to girls in a class is 3 : 4. There are 18 boys. How many girls are there?
  6. 6.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  7. 7.Find the third proportional to 6 and 30 (that is, 6 : 30 = 30 : ?).
  8. 8.Divide ₹260 between Ananya and Arjun in the ratio 7 : 6. How much does Ananya get (in ₹)?
  9. 9.Divide ₹196 between Farhan and Kabir in the ratio 5 : 2. How much does Farhan get (in ₹)?
  10. 10.4 : 3 = 8 : ?
  11. 11.3 : 12 = 24 : ?
  12. 12.Divide ₹216 between Farhan and Rohan in the ratio 5 : 3. How much does Farhan get (in ₹)?
  13. 13.6 : 5 = 42 : ?
  14. 14.Divide ₹210 between Pooja and Zoya in the ratio 3 : 4. How much does Zoya get (in ₹)?
  15. 15.6 : 12 = 12 : ?
  16. 16.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  17. 17.2 : 5 = 12 : ?
  18. 18.The ratio of boys to girls in a class is 5 : 9. There are 50 boys. How many girls are there?
  19. 19.The ratio of boys to girls in a class is 8 : 5. There are 16 boys. How many girls are there?
  20. 20.Find the third proportional to 7 and 35 (that is, 7 : 35 = 35 : ?).
  21. 21.Find the third proportional to 5 and 25 (that is, 5 : 25 = 25 : ?).
  22. 22.11 : 8 = 66 : ?
  23. 23.Divide ₹480 between Saanvi and Meera in the ratio 5 : 7. How much does Saanvi get (in ₹)?
  24. 24.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  25. 25.Divide ₹210 between Isha and Sneha in the ratio 4 : 1. How much does Sneha get (in ₹)?
  26. 26.7 : 15 = 21 : ?
  27. 27.Divide ₹119 between Zoya and Aarav in the ratio 2 : 5. How much does Aarav get (in ₹)?
  28. 28.6 : 7 = 12 : ?
  29. 29.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  30. 30.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  31. 31.Divide ₹60 between Kavya and Zoya in the ratio 5 : 1. How much does Zoya get (in ₹)?
  32. 32.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  33. 33.The ratio of boys to girls in a class is 5 : 3. There are 50 boys. How many girls are there?
  34. 34.The ratio of boys to girls in a class is 1 : 4. There are 5 boys. How many girls are there?
  35. 35.The ratio of boys to girls in a class is 2 : 7. There are 10 boys. How many girls are there?
  36. 36.Find the third proportional to 8 and 24 (that is, 8 : 24 = 24 : ?).
  37. 37.Divide ₹84 between Arjun and Kavya in the ratio 2 : 1. How much does Arjun get (in ₹)?
  38. 38.2 : 13 = 12 : ?
  39. 39.Divide ₹400 between Aarav and Saanvi in the ratio 7 : 3. How much does Aarav get (in ₹)?
  40. 40.Divide ₹235 between Isha and Rohan in the ratio 1 : 4. How much does Isha get (in ₹)?

Answer key

  1. 28
  2. 24
  3. 90
  4. 52
  5. 24
  6. 75
  7. 150
  8. 140
  9. 140
  10. 6
  11. 96
  12. 135
  13. 35
  14. 120
  15. 24
  16. 225
  17. 30
  18. 90
  19. 10
  20. 175
  21. 125
  22. 48
  23. 200
  24. 128
  25. 42
  26. 45
  27. 85
  28. 14
  29. 24
  30. 16
  31. 10
  32. 12
  33. 30
  34. 20
  35. 35
  36. 72
  37. 56
  38. 78
  39. 280
  40. 47

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