Question

When one litre of water is added to a mixture of milk and water, the new mixture contains 20% milk. When one litre of milk is added to the new mixture the resulting mixture contains 33 1/3% milk. The percentage of milk in the original mixture was

Answer 1

20%----------100%

—-------100/3%---

200/3%--------60/3%

ratio =5:1

now 1 ==1 so 5 =5

=> mix =5l

now acid =20%of 5 =1

now 5l =4(org)+1lit water

so % acid in initial mix =1/4*100 =25%

Answer 2

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