← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 271 · 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 3 : 5. There are 21 boys. How many girls are there?
  2. 2.Divide ₹560 between Rohan and Kavya in the ratio 9 : 1. How much does Rohan get (in ₹)?
  3. 3.4 : 13 = 24 : ?
  4. 4.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  5. 5.The ratio of boys to girls in a class is 3 : 4. There are 24 boys. How many girls are there?
  6. 6.Divide ₹99 between Diya and Meera in the ratio 2 : 1. How much does Diya get (in ₹)?
  7. 7.Divide ₹39 between Aditya and Dev in the ratio 2 : 1. How much does Dev get (in ₹)?
  8. 8.4 : 5 = 12 : ?
  9. 9.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  10. 10.7 : 2 = 56 : ?
  11. 11.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  12. 12.The ratio of boys to girls in a class is 6 : 7. There are 18 boys. How many girls are there?
  13. 13.The ratio of boys to girls in a class is 2 : 3. There are 10 boys. How many girls are there?
  14. 14.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  15. 15.Divide ₹799 between Nisha and Zoya in the ratio 8 : 9. How much does Zoya get (in ₹)?
  16. 16.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  17. 17.The ratio of boys to girls in a class is 9 : 2. There are 27 boys. How many girls are there?
  18. 18.10 : 9 = 80 : ?
  19. 19.The ratio of boys to girls in a class is 4 : 3. There are 24 boys. How many girls are there?
  20. 20.The ratio of boys to girls in a class is 9 : 5. There are 90 boys. How many girls are there?
  21. 21.The ratio of boys to girls in a class is 2 : 3. There are 4 boys. How many girls are there?
  22. 22.Divide ₹212 between Nisha and Zoya in the ratio 1 : 3. How much does Nisha get (in ₹)?
  23. 23.Divide ₹77 between Kabir and Arjun in the ratio 6 : 1. How much does Kabir get (in ₹)?
  24. 24.Divide ₹280 between Pooja and Aarav in the ratio 5 : 9. How much does Pooja get (in ₹)?
  25. 25.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  26. 26.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  27. 27.The ratio of boys to girls in a class is 9 : 2. There are 54 boys. How many girls are there?
  28. 28.Divide ₹352 between Aarav and Zoya in the ratio 7 : 4. How much does Zoya get (in ₹)?
  29. 29.The ratio of boys to girls in a class is 2 : 7. There are 6 boys. How many girls are there?
  30. 30.Divide ₹338 between Kavya and Isha in the ratio 6 : 7. How much does Isha get (in ₹)?
  31. 31.The ratio of boys to girls in a class is 9 : 5. There are 54 boys. How many girls are there?
  32. 32.Divide ₹145 between Nisha and Sneha in the ratio 3 : 2. How much does Nisha get (in ₹)?
  33. 33.7 : 13 = 28 : ?
  34. 34.4 : 2 = 12 : ?
  35. 35.Divide ₹418 between Kabir and Arjun in the ratio 9 : 2. How much does Arjun get (in ₹)?
  36. 36.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  37. 37.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  38. 38.9 : 8 = 18 : ?
  39. 39.5 : 12 = 10 : ?
  40. 40.3 : 2 = 6 : ?

Answer key

  1. 35
  2. 504
  3. 78
  4. 80
  5. 32
  6. 66
  7. 13
  8. 15
  9. 32
  10. 16
  11. 36
  12. 21
  13. 15
  14. 28
  15. 423
  16. 50
  17. 6
  18. 72
  19. 18
  20. 50
  21. 6
  22. 53
  23. 66
  24. 100
  25. 12
  26. 64
  27. 12
  28. 128
  29. 21
  30. 182
  31. 30
  32. 87
  33. 52
  34. 6
  35. 76
  36. 20
  37. 24
  38. 16
  39. 24
  40. 4

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