In the lab, Ahmad has two solutions that contain alcohol and is mixing them with each other. He uses twice as much Solution A as Solution B. Solution A is 19% alcohol and Solution B is 15% alcohol. How many milliliters of Solution A does he use, if the resulting mixture has 159 milliliters of pure alcohol?

Question

In the lab, Ahmad has two solutions that contain alcohol and is mixing them with each other. He uses twice as much Solution A as Solution B. Solution A is 19%  alcohol and Solution B is   15% alcohol. How many milliliters of Solution A does he use, if the resulting mixture has 159  milliliters of pure alcohol?

hero · Answer

You're still at it? Is it too late to answer the question?

hero · Answer

How come you aren't responding?

anonymous · Answer

She/He drank the alcoholic solution! ;-)

anonymous · Answer

so A = 2B

and .19A + .15B = 159

anonymous · Answer

haha ishaan!