1.

A mixture contains 40 litres milk and rest water. When 25% mixture is drawn and 15litres of milk and 20 litres of water is added tothe taken out mixture the ratio of milk to waterin the taken out mixture becomes 5:7, find theinitial quantity of water in the mixture​

Answer»

-STEP explanation:40 litres => milk = 30 water = 10Let us add x litres waterNew volume = 40 + xNew volume of water in new mixture= 10 + XWE know, 10 + x = 30% of (40 + x)=> 10 + x = 3/10(40 + x)=> 100 + 10x = 120 + 3X=> 7x = 20=> x = 20/7 litres



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