Question

Q. Mixture of milk and water has been kept in two separate containers. Ratio of milk to water in one of the containers is 5 : 1 and that in the other container 7 : 2. In what ratio the mixtures of these two containers should be added together so that the quantity of milk in the new mixture may become 80%?

Answer 1

Answer:

ratio of milk in first condition=5/6

ratio of milk in 2nd condition=7/9

ratio of milk required=80%=4/5

let x amount is taken form 1st container and y amount form 2nd.

so, 5x/6+7y/9=4

and x+y=5

solving we get,x=2,y=3

ratio=2/3