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1. The acid and water in two vessels A and B are in the ratio 4 : 3 and 2 : 3. In what ratio should the liquid in both the vessels be mixed to obtain a new mixture in vessel C containing half acid and half water ?

A. 7 : 5

B. 5 : 7

C. 7 : 3

D. 5 : 3

Solution:

According to the question,

\begin{aligned} Acid Water \\ Vessel A 4 : 3 \\ Vessel B 2 : 3 \end{aligned}

Now using alligation,
Alligation mcq solution image

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