← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 907 · 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 7 : 1. There are 28 boys. How many girls are there?
  2. 2.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  3. 3.Divide ₹234 between Arjun and Priya in the ratio 4 : 5. How much does Priya get (in ₹)?
  4. 4.12 : 14 = 36 : ?
  5. 5.The ratio of boys to girls in a class is 4 : 5. There are 20 boys. How many girls are there?
  6. 6.12 : 7 = 24 : ?
  7. 7.Divide ₹510 between Priya and Zoya in the ratio 8 : 9. How much does Priya get (in ₹)?
  8. 8.Divide ₹90 between Ananya and Nisha in the ratio 2 : 1. How much does Ananya get (in ₹)?
  9. 9.Divide ₹280 between Sneha and Pooja in the ratio 3 : 4. How much does Sneha get (in ₹)?
  10. 10.The ratio of boys to girls in a class is 4 : 7. There are 24 boys. How many girls are there?
  11. 11.10 : 9 = 90 : ?
  12. 12.11 : 14 = 88 : ?
  13. 13.Divide ₹462 between Aarav and Arjun in the ratio 6 : 5. How much does Aarav get (in ₹)?
  14. 14.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  15. 15.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  16. 16.Find the third proportional to 3 and 12 (that is, 3 : 12 = 12 : ?).
  17. 17.The ratio of boys to girls in a class is 9 : 4. There are 45 boys. How many girls are there?
  18. 18.9 : 5 = 63 : ?
  19. 19.Divide ₹312 between Diya and Isha in the ratio 4 : 9. How much does Isha get (in ₹)?
  20. 20.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  21. 21.Divide ₹192 between Saanvi and Pooja in the ratio 5 : 7. How much does Pooja get (in ₹)?
  22. 22.The ratio of boys to girls in a class is 9 : 5. There are 45 boys. How many girls are there?
  23. 23.8 : 12 = 16 : ?
  24. 24.10 : 8 = 60 : ?
  25. 25.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  26. 26.Divide ₹261 between Isha and Arjun in the ratio 7 : 2. How much does Isha get (in ₹)?
  27. 27.3 : 8 = 6 : ?
  28. 28.The ratio of boys to girls in a class is 1 : 2. There are 8 boys. How many girls are there?
  29. 29.Divide ₹319 between Diya and Tara in the ratio 2 : 9. How much does Diya get (in ₹)?
  30. 30.Divide ₹170 between Farhan and Ishaan in the ratio 4 : 1. How much does Ishaan get (in ₹)?
  31. 31.Divide ₹390 between Isha and Arjun in the ratio 9 : 1. How much does Isha get (in ₹)?
  32. 32.9 : 15 = 36 : ?
  33. 33.The ratio of boys to girls in a class is 8 : 9. There are 64 boys. How many girls are there?
  34. 34.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  35. 35.The ratio of boys to girls in a class is 7 : 5. There are 63 boys. How many girls are there?
  36. 36.The ratio of boys to girls in a class is 7 : 5. There are 56 boys. How many girls are there?
  37. 37.2 : 3 = 18 : ?
  38. 38.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  39. 39.4 : 10 = 8 : ?
  40. 40.The ratio of boys to girls in a class is 7 : 2. There are 70 boys. How many girls are there?

Answer key

  1. 4
  2. 16
  3. 130
  4. 42
  5. 25
  6. 14
  7. 240
  8. 60
  9. 120
  10. 42
  11. 81
  12. 112
  13. 252
  14. 45
  15. 100
  16. 48
  17. 20
  18. 35
  19. 216
  20. 50
  21. 112
  22. 25
  23. 24
  24. 48
  25. 20
  26. 203
  27. 16
  28. 16
  29. 58
  30. 34
  31. 351
  32. 60
  33. 72
  34. 32
  35. 45
  36. 40
  37. 27
  38. 32
  39. 20
  40. 20

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