← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 728 · 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 12 boys. How many girls are there?
  2. 2.4 : 3 = 16 : ?
  3. 3.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  4. 4.12 : 15 = 36 : ?
  5. 5.3 : 13 = 6 : ?
  6. 6.8 : 7 = 56 : ?
  7. 7.The ratio of boys to girls in a class is 5 : 2. There are 25 boys. How many girls are there?
  8. 8.Divide ₹56 between Arjun and Nisha in the ratio 2 : 5. How much does Arjun get (in ₹)?
  9. 9.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  10. 10.The ratio of boys to girls in a class is 7 : 6. There are 49 boys. How many girls are there?
  11. 11.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  12. 12.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  13. 13.2 : 9 = 12 : ?
  14. 14.Divide ₹100 between Farhan and Karan in the ratio 3 : 7. How much does Farhan get (in ₹)?
  15. 15.Divide ₹605 between Aditya and Karan in the ratio 2 : 9. How much does Karan get (in ₹)?
  16. 16.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  17. 17.Divide ₹560 between Priya and Saanvi in the ratio 9 : 1. How much does Saanvi get (in ₹)?
  18. 18.Divide ₹216 between Ananya and Meera in the ratio 7 : 5. How much does Meera get (in ₹)?
  19. 19.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  20. 20.11 : 15 = 66 : ?
  21. 21.Divide ₹354 between Nisha and Isha in the ratio 5 : 1. How much does Nisha get (in ₹)?
  22. 22.12 : 7 = 48 : ?
  23. 23.6 : 9 = 36 : ?
  24. 24.Find the third proportional to 6 and 30 (that is, 6 : 30 = 30 : ?).
  25. 25.Divide ₹143 between Diya and Ishaan in the ratio 8 : 3. How much does Diya get (in ₹)?
  26. 26.5 : 13 = 35 : ?
  27. 27.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  28. 28.The ratio of boys to girls in a class is 5 : 7. There are 30 boys. How many girls are there?
  29. 29.3 : 6 = 12 : ?
  30. 30.Divide ₹308 between Ananya and Rahul in the ratio 2 : 5. How much does Ananya get (in ₹)?
  31. 31.Find the third proportional to 7 and 21 (that is, 7 : 21 = 21 : ?).
  32. 32.Divide ₹320 between Aditya and Ishaan in the ratio 1 : 7. How much does Ishaan get (in ₹)?
  33. 33.Divide ₹216 between Tara and Dev in the ratio 1 : 7. How much does Dev get (in ₹)?
  34. 34.Divide ₹520 between Aarav and Diya in the ratio 4 : 9. How much does Diya get (in ₹)?
  35. 35.Divide ₹153 between Rahul and Farhan in the ratio 1 : 8. How much does Farhan get (in ₹)?
  36. 36.3 : 5 = 27 : ?
  37. 37.The ratio of boys to girls in a class is 2 : 5. There are 20 boys. How many girls are there?
  38. 38.The ratio of boys to girls in a class is 9 : 4. There are 27 boys. How many girls are there?
  39. 39.Divide ₹216 between Meera and Ananya in the ratio 1 : 5. How much does Ananya get (in ₹)?
  40. 40.The ratio of boys to girls in a class is 7 : 5. There are 14 boys. How many girls are there?

Answer key

  1. 20
  2. 12
  3. 75
  4. 45
  5. 26
  6. 49
  7. 10
  8. 16
  9. 144
  10. 42
  11. 36
  12. 128
  13. 54
  14. 30
  15. 495
  16. 50
  17. 56
  18. 90
  19. 54
  20. 90
  21. 295
  22. 28
  23. 54
  24. 150
  25. 104
  26. 91
  27. 18
  28. 42
  29. 24
  30. 88
  31. 63
  32. 280
  33. 189
  34. 360
  35. 136
  36. 45
  37. 50
  38. 12
  39. 180
  40. 10

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