Question

A woman buys spirit at rs.60 per litre, adds water to it and then sells it at rs.75 per litre. what is the ratio of the spirit to water if her profit in the deal is 37.5%?

Answer 1

Let the man takes the initial quantity of spirit is = X liters
Then the cost price will be= 60*X rs.
suppose he mixes Y liters of water in the Initial Quantity of the spirit.
Then the quantity of mixture will become= (X+Y) liters
Total money after selling the mixture at the rate of 75 will be= 75*(X+Y) rs.
According to the question
Toatal money after selling the mixture=1.375 *60X
so,
1.375*60X=75*(X+Y)

After solving the above equation we will get-------> (X/Y)=(10/1).