Question

Question 19
A solution M contains water and alcohol in the ratio 3:1. Alcohol evaporates three
times as fast as water. If after some time, the ratio of water and alcohol is Mis
17:3, what fraction of M has evaporated?​

Answer 1

Answer:

A solution M contains water and alcohol in the ratio 3:1. Alcohol evaporates three

times as fast as water. If after some time, the ratio of water and alcohol is Mis

17:3, what fraction of M has evaporated?

Answer 2

Answer:

solution contains alcohol and water in the ratio 3 : 1. 16 litres of the solution is drawn and 12 litres of water is added. Now 11 litres of the mixture is replaced by 11 litres of the water. If the final ratio of alcohol to water in the solution is 9 : 13, find the initial quantity of the solution.

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