In a 100 litre of mixture the ratio of milk and water is 6:4. How much milk must be added to the mixture in order to make the ratio 3 : 1?

Q: In a 100 litre of mixture the ratio of milk and water is 6:4. How much milk must be added to the mixture in order to make the ratio 3 : 1?

Let M litres milk be added => 60 + M 40 = 3 1 => 60 + M = 120 => M = 60 lit.

85
60
55
45

Correct Answer: 60

Explanation:

Let M litres milk be added

=> $\frac{60 + M}{40} = \frac{3}{1}$

=> 60 + M = 120

=> M = 60 lit.

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