← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 327 · 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 ₹144 between Dev and Tara in the ratio 1 : 2. How much does Dev get (in ₹)?
  2. 2.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  3. 3.Divide ₹300 between Arjun and Aditya in the ratio 5 : 7. How much does Arjun get (in ₹)?
  4. 4.3 : 14 = 6 : ?
  5. 5.Divide ₹590 between Meera and Ananya in the ratio 1 : 9. How much does Meera get (in ₹)?
  6. 6.Divide ₹108 between Sneha and Pooja in the ratio 1 : 5. How much does Sneha get (in ₹)?
  7. 7.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  8. 8.The ratio of boys to girls in a class is 5 : 4. There are 15 boys. How many girls are there?
  9. 9.The ratio of boys to girls in a class is 5 : 6. There are 45 boys. How many girls are there?
  10. 10.10 : 15 = 20 : ?
  11. 11.The ratio of boys to girls in a class is 9 : 7. There are 90 boys. How many girls are there?
  12. 12.The ratio of boys to girls in a class is 7 : 3. There are 56 boys. How many girls are there?
  13. 13.The ratio of boys to girls in a class is 5 : 6. There are 25 boys. How many girls are there?
  14. 14.6 : 15 = 24 : ?
  15. 15.9 : 2 = 18 : ?
  16. 16.5 : 7 = 35 : ?
  17. 17.3 : 5 = 24 : ?
  18. 18.Divide ₹320 between Saanvi and Sneha in the ratio 1 : 7. How much does Sneha get (in ₹)?
  19. 19.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  20. 20.The ratio of boys to girls in a class is 1 : 7. There are 10 boys. How many girls are there?
  21. 21.7 : 8 = 14 : ?
  22. 22.Find the third proportional to 6 and 30 (that is, 6 : 30 = 30 : ?).
  23. 23.Divide ₹510 between Kavya and Tara in the ratio 3 : 7. How much does Tara get (in ₹)?
  24. 24.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  25. 25.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  26. 26.The ratio of boys to girls in a class is 6 : 1. There are 36 boys. How many girls are there?
  27. 27.8 : 14 = 56 : ?
  28. 28.11 : 5 = 44 : ?
  29. 29.5 : 14 = 15 : ?
  30. 30.Divide ₹319 between Zoya and Manav in the ratio 4 : 7. How much does Zoya get (in ₹)?
  31. 31.2 : 7 = 12 : ?
  32. 32.The ratio of boys to girls in a class is 2 : 1. There are 6 boys. How many girls are there?
  33. 33.Divide ₹182 between Sneha and Manav in the ratio 7 : 6. How much does Sneha get (in ₹)?
  34. 34.3 : 6 = 12 : ?
  35. 35.Divide ₹470 between Aarav and Rohan in the ratio 3 : 7. How much does Aarav get (in ₹)?
  36. 36.Divide ₹135 between Rohan and Karan in the ratio 1 : 4. How much does Karan get (in ₹)?
  37. 37.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  38. 38.Divide ₹156 between Diya and Saanvi in the ratio 2 : 1. How much does Saanvi get (in ₹)?
  39. 39.Find the third proportional to 4 and 12 (that is, 4 : 12 = 12 : ?).
  40. 40.The ratio of boys to girls in a class is 1 : 5. There are 3 boys. How many girls are there?

Answer key

  1. 48
  2. 18
  3. 125
  4. 28
  5. 59
  6. 18
  7. 27
  8. 12
  9. 54
  10. 30
  11. 70
  12. 24
  13. 30
  14. 60
  15. 4
  16. 49
  17. 40
  18. 280
  19. 128
  20. 70
  21. 16
  22. 150
  23. 357
  24. 32
  25. 100
  26. 6
  27. 98
  28. 20
  29. 42
  30. 116
  31. 42
  32. 3
  33. 98
  34. 24
  35. 141
  36. 108
  37. 144
  38. 52
  39. 36
  40. 15

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