← Ratio and proportion lesson New set →

Ratio and Proportion Worksheet

Quantitative aptitude lesson 8: Ratio and proportion · Set 343 · 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. 1.7 : 2 = 14 : ?
  2. 2.The ratio of boys to girls in a class is 2 : 9. There are 18 boys. How many girls are there?
  3. 3.2 : 5 = 8 : ?
  4. 4.Divide ₹224 between Farhan and Meera in the ratio 7 : 9. How much does Farhan get (in ₹)?
  5. 5.The ratio of boys to girls in a class is 2 : 1. There are 6 boys. How many girls are there?
  6. 6.Divide ₹252 between Priya and Tara in the ratio 5 : 1. How much does Priya get (in ₹)?
  7. 7.The ratio of boys to girls in a class is 6 : 5. There are 30 boys. How many girls are there?
  8. 8.The ratio of boys to girls in a class is 1 : 4. There are 8 boys. How many girls are there?
  9. 9.The ratio of boys to girls in a class is 6 : 7. There are 60 boys. How many girls are there?
  10. 10.Divide ₹585 between Saanvi and Ishaan in the ratio 7 : 6. How much does Saanvi get (in ₹)?
  11. 11.9 : 5 = 72 : ?
  12. 12.The ratio of boys to girls in a class is 2 : 3. There are 10 boys. How many girls are there?
  13. 13.The ratio of boys to girls in a class is 8 : 1. There are 16 boys. How many girls are there?
  14. 14.Find the third proportional to 8 and 24 (that is, 8 : 24 = 24 : ?).
  15. 15.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  16. 16.Find the third proportional to 7 and 35 (that is, 7 : 35 = 35 : ?).
  17. 17.The ratio of boys to girls in a class is 3 : 7. There are 18 boys. How many girls are there?
  18. 18.The ratio of boys to girls in a class is 7 : 1. There are 63 boys. How many girls are there?
  19. 19.Divide ₹540 between Isha and Priya in the ratio 7 : 3. How much does Priya get (in ₹)?
  20. 20.Divide ₹143 between Karan and Priya in the ratio 9 : 2. How much does Karan get (in ₹)?
  21. 21.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  22. 22.Divide ₹147 between Pooja and Isha in the ratio 1 : 2. How much does Pooja get (in ₹)?
  23. 23.The ratio of boys to girls in a class is 6 : 7. There are 12 boys. How many girls are there?
  24. 24.The ratio of boys to girls in a class is 2 : 3. There are 8 boys. How many girls are there?
  25. 25.Divide ₹108 between Zoya and Aarav in the ratio 2 : 7. How much does Zoya get (in ₹)?
  26. 26.The ratio of boys to girls in a class is 7 : 2. There are 42 boys. How many girls are there?
  27. 27.Divide ₹490 between Pooja and Dev in the ratio 9 : 1. How much does Dev get (in ₹)?
  28. 28.8 : 13 = 32 : ?
  29. 29.Divide ₹399 between Zoya and Nisha in the ratio 6 : 1. How much does Zoya get (in ₹)?
  30. 30.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  31. 31.8 : 15 = 72 : ?
  32. 32.The ratio of boys to girls in a class is 1 : 3. There are 10 boys. How many girls are there?
  33. 33.10 : 2 = 70 : ?
  34. 34.Divide ₹650 between Rohan and Sneha in the ratio 5 : 8. How much does Sneha get (in ₹)?
  35. 35.Divide ₹234 between Meera and Kavya in the ratio 6 : 7. How much does Meera get (in ₹)?
  36. 36.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  37. 37.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  38. 38.The ratio of boys to girls in a class is 7 : 1. There are 56 boys. How many girls are there?
  39. 39.The ratio of boys to girls in a class is 7 : 8. There are 63 boys. How many girls are there?
  40. 40.10 : 5 = 40 : ?

Answer key

  1. 4
  2. 81
  3. 20
  4. 98
  5. 3
  6. 210
  7. 25
  8. 32
  9. 70
  10. 315
  11. 40
  12. 15
  13. 2
  14. 72
  15. 24
  16. 175
  17. 42
  18. 9
  19. 162
  20. 117
  21. 12
  22. 49
  23. 14
  24. 12
  25. 24
  26. 12
  27. 49
  28. 52
  29. 342
  30. 32
  31. 135
  32. 30
  33. 14
  34. 400
  35. 108
  36. 128
  37. 144
  38. 8
  39. 72
  40. 20

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