← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 409 · 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 2 : 1. There are 4 boys. How many girls are there?
  2. 2.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  3. 3.Find the third proportional to 7 and 21 (that is, 7 : 21 = 21 : ?).
  4. 4.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  5. 5.The ratio of boys to girls in a class is 3 : 1. There are 12 boys. How many girls are there?
  6. 6.4 : 2 = 32 : ?
  7. 7.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  8. 8.The ratio of boys to girls in a class is 5 : 3. There are 25 boys. How many girls are there?
  9. 9.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  10. 10.Divide ₹340 between Ishaan and Kabir in the ratio 7 : 3. How much does Kabir get (in ₹)?
  11. 11.Divide ₹70 between Manav and Rahul in the ratio 5 : 2. How much does Rahul get (in ₹)?
  12. 12.Divide ₹295 between Farhan and Dev in the ratio 4 : 1. How much does Farhan get (in ₹)?
  13. 13.Divide ₹176 between Vivaan and Isha in the ratio 8 : 3. How much does Vivaan get (in ₹)?
  14. 14.Divide ₹160 between Manav and Isha in the ratio 3 : 5. How much does Manav get (in ₹)?
  15. 15.The ratio of boys to girls in a class is 9 : 8. There are 27 boys. How many girls are there?
  16. 16.The ratio of boys to girls in a class is 4 : 5. There are 28 boys. How many girls are there?
  17. 17.Find the third proportional to 8 and 40 (that is, 8 : 40 = 40 : ?).
  18. 18.12 : 15 = 72 : ?
  19. 19.The ratio of boys to girls in a class is 5 : 1. There are 20 boys. How many girls are there?
  20. 20.Divide ₹240 between Saanvi and Ananya in the ratio 7 : 8. How much does Saanvi get (in ₹)?
  21. 21.Find the third proportional to 7 and 35 (that is, 7 : 35 = 35 : ?).
  22. 22.Divide ₹598 between Ishaan and Zoya in the ratio 5 : 8. How much does Ishaan get (in ₹)?
  23. 23.The ratio of boys to girls in a class is 8 : 7. There are 24 boys. How many girls are there?
  24. 24.Divide ₹360 between Kavya and Saanvi in the ratio 1 : 7. How much does Kavya get (in ₹)?
  25. 25.Find the third proportional to 7 and 28 (that is, 7 : 28 = 28 : ?).
  26. 26.The ratio of boys to girls in a class is 5 : 9. There are 35 boys. How many girls are there?
  27. 27.Divide ₹189 between Farhan and Ishaan in the ratio 5 : 4. How much does Farhan get (in ₹)?
  28. 28.9 : 2 = 27 : ?
  29. 29.6 : 2 = 24 : ?
  30. 30.The ratio of boys to girls in a class is 6 : 7. There are 18 boys. How many girls are there?
  31. 31.4 : 5 = 36 : ?
  32. 32.The ratio of boys to girls in a class is 7 : 3. There are 70 boys. How many girls are there?
  33. 33.The ratio of boys to girls in a class is 8 : 5. There are 48 boys. How many girls are there?
  34. 34.Divide ₹120 between Sneha and Diya in the ratio 7 : 1. How much does Sneha get (in ₹)?
  35. 35.Divide ₹135 between Meera and Priya in the ratio 4 : 1. How much does Priya get (in ₹)?
  36. 36.2 : 5 = 14 : ?
  37. 37.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  38. 38.Divide ₹108 between Rahul and Ishaan in the ratio 5 : 1. How much does Ishaan get (in ₹)?
  39. 39.5 : 6 = 20 : ?
  40. 40.The ratio of boys to girls in a class is 7 : 2. There are 21 boys. How many girls are there?

Answer key

  1. 2
  2. 80
  3. 63
  4. 8
  5. 4
  6. 16
  7. 225
  8. 15
  9. 100
  10. 102
  11. 20
  12. 236
  13. 128
  14. 60
  15. 24
  16. 35
  17. 200
  18. 90
  19. 4
  20. 112
  21. 175
  22. 230
  23. 21
  24. 45
  25. 112
  26. 63
  27. 105
  28. 6
  29. 8
  30. 21
  31. 45
  32. 30
  33. 30
  34. 105
  35. 27
  36. 35
  37. 16
  38. 18
  39. 24
  40. 6

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