Question

A mixture of 85 kg contains milk and water in the ratio 27 : 7. How much more water is to be added to
   get a new mixture containing milk and water in the ratio 3:1?​

Answer 1

milk is 67.5kg and water is 17.5kg

milk +water =(67.5+17.5)kg=85kg

ratio 27:7

in this mixture when we added 3.75kg water and Subtract 3.75kg milk

then in the new mixture will milk 63.75kg and water 21.25kg

(63.75+21.25)kg=85 kg and

ratio 3:1