Two vessels contain spirit and water mixed respectively in the ratio of 1:4 and 4:1. Find the ratio in which these are to be mixed to get a new mixture in which the ratio of spirit to water is 1:3.

Two vessels contain spirit and water mixed respectively in the ratio of 1:4 and 4:1. Find the ratio in which these are to be mixed to get a new mixture in which the ratio of spirit to water is 1:3.

• A. 11:1
• B. 13:1
• C. 11:2
• D. 11:3

 

The correct answer is option A. 11:1. Can you explain this answer in the comments?

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