← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 516 · 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 ₹408 between Arjun and Dev in the ratio 1 : 7. How much does Dev get (in ₹)?
  2. 2.5 : 15 = 10 : ?
  3. 3.Divide ₹143 between Ananya and Sneha in the ratio 9 : 4. How much does Ananya get (in ₹)?
  4. 4.The ratio of boys to girls in a class is 6 : 5. There are 42 boys. How many girls are there?
  5. 5.3 : 13 = 6 : ?
  6. 6.The ratio of boys to girls in a class is 5 : 7. There are 20 boys. How many girls are there?
  7. 7.Divide ₹75 between Dev and Aarav in the ratio 4 : 1. How much does Dev get (in ₹)?
  8. 8.The ratio of boys to girls in a class is 5 : 4. There are 30 boys. How many girls are there?
  9. 9.The ratio of boys to girls in a class is 1 : 8. There are 5 boys. How many girls are there?
  10. 10.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  11. 11.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  12. 12.The ratio of boys to girls in a class is 6 : 1. There are 18 boys. How many girls are there?
  13. 13.4 : 3 = 20 : ?
  14. 14.The ratio of boys to girls in a class is 3 : 1. There are 12 boys. How many girls are there?
  15. 15.Find the third proportional to 8 and 24 (that is, 8 : 24 = 24 : ?).
  16. 16.Divide ₹210 between Rohan and Aditya in the ratio 6 : 1. How much does Aditya get (in ₹)?
  17. 17.The ratio of boys to girls in a class is 9 : 7. There are 72 boys. How many girls are there?
  18. 18.Divide ₹224 between Manav and Vivaan in the ratio 5 : 2. How much does Vivaan get (in ₹)?
  19. 19.The ratio of boys to girls in a class is 3 : 8. There are 15 boys. How many girls are there?
  20. 20.8 : 9 = 24 : ?
  21. 21.Divide ₹484 between Manav and Isha in the ratio 6 : 5. How much does Isha get (in ₹)?
  22. 22.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  23. 23.Divide ₹253 between Kabir and Nisha in the ratio 9 : 2. How much does Kabir get (in ₹)?
  24. 24.9 : 8 = 18 : ?
  25. 25.11 : 2 = 44 : ?
  26. 26.9 : 5 = 72 : ?
  27. 27.5 : 8 = 35 : ?
  28. 28.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  29. 29.The ratio of boys to girls in a class is 2 : 7. There are 12 boys. How many girls are there?
  30. 30.11 : 9 = 77 : ?
  31. 31.3 : 15 = 6 : ?
  32. 32.2 : 6 = 6 : ?
  33. 33.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  34. 34.9 : 11 = 63 : ?
  35. 35.6 : 7 = 42 : ?
  36. 36.Divide ₹42 between Dev and Vivaan in the ratio 2 : 1. How much does Dev get (in ₹)?
  37. 37.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  38. 38.Divide ₹705 between Isha and Arjun in the ratio 8 : 7. How much does Arjun get (in ₹)?
  39. 39.Divide ₹300 between Rohan and Zoya in the ratio 2 : 3. How much does Zoya get (in ₹)?
  40. 40.3 : 13 = 21 : ?

Answer key

  1. 357
  2. 30
  3. 99
  4. 35
  5. 26
  6. 28
  7. 60
  8. 24
  9. 40
  10. 225
  11. 32
  12. 3
  13. 15
  14. 4
  15. 72
  16. 30
  17. 56
  18. 64
  19. 40
  20. 27
  21. 220
  22. 24
  23. 207
  24. 16
  25. 8
  26. 40
  27. 56
  28. 16
  29. 42
  30. 63
  31. 30
  32. 18
  33. 75
  34. 77
  35. 49
  36. 28
  37. 100
  38. 329
  39. 180
  40. 91

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