In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quanity of water to be further added is:

Correct Answer: 60 litres

Explanation:

Quantity of milk =	❨	60 x	2	❩litres = 40 litres.
			3

Quantity of water in it = (60- 40) litres = 20 litres.

New ratio = 1 : 2

Let quantity of water to be added further be x litres.

Then, milk : water =	❨	40	❩	.
		20 + x

Now,	❨	40	❩	=	1
		20 + x			2

⟹ 20 + x = 80

⟹ x = 60.

∴ Quantity of water to be added = 60 litres.

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