SOLUTION: How much 30% alcohol, 45% alcohol, 60% alcohol and 95% alcohol could be mixed to make 20ml of 50% alcohol?
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Question 921829: How much 30% alcohol, 45% alcohol, 60% alcohol and 95% alcohol could be mixed to make 20ml of 50% alcohol?
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Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = ml of 30% alcohol
Let = ml of 45% alcohol
Let = ml of 60% alcohol
Let = ml of 95% alcohol
ml of alcohol in final mixture
----------------------------------------
-------------------------------
Actually you don't need any 95% or 30%
so, I can say:
(1)
(2)
(2)
(2)
----------------------
Multiply both sides of (1) by and
subtract (1) from (2)
(2)
(1)
and
(1)
(2)
(2)
-------------------
0 ml of 30% alcohol
13.333 ml of 45% alcohol
6.667 ml of 60% alcohol
0 ml of 95% alcohol
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Hope I got it
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