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Question

A mixture (alcohol + water) contains alcohol and water in the ratio of 4:3, respectively. If 49 litres of the mixture is replaced with 21 litres of water, then quantity of alcohol in the final mixture becomes 28 litres more than that of water. Find the initial quantity of the mixture.

A 266 litres

B 336 litres

C 392 litres

D 280 litres

E None of these

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