1. 80 litre mixture of milk and water contains 10% milk. How much milk (in litres) must be added to make water percentage in the mixture as 80%?





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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 => Quantity of water = $$80-8=72$$ litres Let $$x$$ litres of water is added According to ques, => $$frac{80}{100}(x+80)=72$$ => $$x+80=72 imesfrac{5}{4}=90$$ => $$x=90-80=10$$ litres => Ans - (C)
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