How much pure alcohol must be added to 400 ml of a 15% solution to make its strength 32% - Maths -

Question

How much pure alcohol must be added to 400 ml of a 15% solution
to make its strength 32%?

Gopal Mohanty · Accepted Answer

Original amount of alcohol = 400 ml Percentage of alcohol in the solution = 15%

Let x ml alcohol is added to the solution ∴ Amount of alcohol = (60 + x) ml Amount of solution = (400 + x) ml Given that the percentage of alcohol in the solution is 32%

Thus, approximately 179 4 ml of alcohol is added to the solution Hope! You got the answer Cheers!

How much pure alcohol must be added to 400 ml of a 15% solution to make its strength 32%?