Question

In a mixture of milk and water of volume 30 litres, the ratio
of milk and water is 7:3. How many quantity of water is to be
added to the mixture to make the ratio of milk and water 1:2?
a. 30 litres
b. 32 litres
c. 33 litres
d. 35 litres
e. None of these​

Answer 1

6 litres from a 30 litre mixture of milk and water in the ratio 3 : 2 is replaced with milk. The operation is repeated once.

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