Answer:
Mixture of both alcohol and water in solution is 50 milliliters
Explanation:
Let x = the volume of the solution (alcohol plus water )
The solution of alcohol and water
contains 70% alcohol. This means the solution contains ( 70/100) × x
=0.7×x = 0.7x
Since the mixture contains only alcohol and water,
The percentage of water in the solution = (100% - % of alcohol)
= 100% -70% = 30%
The solution is found to contain 35 milliliters of alcohol. This means that
0.7x = 35 milliliters of alcohol
x = 35/0.7
x = 50 milliliters
Mixture of both alcohol and water in solution is 50 milliliters