Question 719764
I have a 100ml bottle and I have 37% alcohol I want to make a mixture of alcohol and water that is 25% alcohol to water what is the ratio and how do I go about working it out?
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let x=amt of water to add to 37% alcohol solution.
37%*100+0%x=25%(100+x)
37=25+.25x
.25x=12
x=48
amt of water to add to 37% alcohol solution=48 ml
ratio of alcohol to water in the final mixture: 25/100 or 1/4