1. How much water (in litres) must be added to 80 litres solution of milk and water containing 10% milk, so that it becomes a 5% milk solution?
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By: anil on 05 May 2019 01.47 am
Quantity of mixture = 80 litres Quantity of milk = $$frac{10}{100} imes80=8$$ litres Let $$x$$ litres of water is added According to ques, => $$frac{5}{100}(x+80)=8$$ => $$x+80=8 imes20=160$$ => $$x=160-80=80$$ litres => Ans - (D)
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