Question

60 litres of a mixture contains milk and water in the ratio 2 : 3. If 20 litres of water is mixed in it, the percentage of milk in the new mixture will be
A) 40%
B) 36%
C) 24%
D) 30%

Answer 1

Let the common multiple be x.

Let mixture of milk =2x and of water =3x.

Then,

2x+3x=60

5x=60=>x=12.

Therefore,

60 litres contains 24 litres milk and 36 litres water.

Now,

If water is added 20 litres,

Total solution becomes 80 litres.

Therefore,

Percentage of milk=24/80×100=30 percent.

Hence,option d) is correct.

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