In a mixture 40 litres, the ratio of milk and water 3:1. If the this ratio is to be 1:3, then the quantity of water to be further added is:
none of the above
Quantity of milk =(40×3/4) litres =30 litres.
Quantity of water in it =(40-30) litres =10 litres.
New ratio =1:3
Let quantity of water to be added further be x litres.
Then, milk : water=(30/10+x)
=> 10+x = 90
=> x= 80
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