Question 112

A milk and water solution has milk and water in the ratio 4:1. After adding 40 ml of water the ratio of milk and water becomes 2:1. What is the total volume of the solution now?

Solution

Let the initial volume of the solution be 5V out of which milk is 4V and water is V.
After adding 40 ml water the ratio becomes 2:1. So we get,
$$\frac{4V}{V+40}=\frac{2}{1}$$
$$=>V=40$$ ml
So the volume of the solution now = 5V+40 = 5*40+40 = 240 ml
Hence Option C.

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