A mixture containing 50% wine is mixed with another mixture containing 60% wine in the ratio x : y. If the quantity of wine in the final mixture is 51.25%, find the value of x : y.

Correct Answer: 7 : 1
The ratio in which the liquids are mixed = x : y. X : y = (60 – 51.25) : (51.25 – 50) = 8.75 : 1.25 = 7 : 1