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Home › Quantitative Aptitude › Ratio and Proportion

Ratio and Proportion — Quantitative Aptitude Questions & Practice

Practise 256 Ratio and Proportion questions from Quantitative Aptitude for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.

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Practice questions on Ratio and Proportion — with answers

Try each question first, then open the answer. Explanations are included.

1. Two numbers are in the ratio 2:4. If their sum is 36, find the larger number.

  1. A29
  2. B18
  3. C20
  4. D24
Show answer

Answer: D

Sum of ratio parts = 2+4 = 6. One part = 36/6 = 6. Larger number = 4 x 6 = 24.

2. Two numbers are in the ratio 9:11. If their sum is 320, find the larger number.

  1. A220
  2. B185
  3. C176
  4. D166
Show answer

Answer: C

Sum of ratio parts = 9+11 = 20. One part = 320/20 = 16. Larger number = 11 x 16 = 176.

3. Two numbers are in the ratio 3:15. If their sum is 144, find the larger number.

  1. A110
  2. B150
  3. C120
  4. D144
Show answer

Answer: C

Sum of ratio parts = 3+15 = 18. One part = 144/18 = 8. Larger number = 15 x 8 = 120.

4. Two numbers are in the ratio 3:12. If their sum is 105, find the larger number.

  1. A88
  2. B63
  3. C84
  4. D105
Show answer

Answer: C

Sum of ratio parts = 3+12 = 15. One part = 105/15 = 7. Larger number = 12 x 7 = 84.

5. Two numbers are in the ratio 2:7. If their sum is 45, find the larger number.

  1. A45
  2. B35
  3. C15
  4. D20
Show answer

Answer: B

Sum of ratio parts = 2+7 = 9. One part = 45/9 = 5. Larger number = 7 x 5 = 35.

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