SOLUTION: A bottle contains 850 mL of fruit punch with a concentration of 50% pure fruit juice. Jill drinks 100 mL of the punch and then refills the bottle with an equal amount of a cheaper

Question 350130: A bottle contains 850 mL of fruit punch with a concentration of 50% pure fruit juice. Jill drinks 100 mL of the punch and then refills the bottle with an equal amount of a cheaper brand of punch. If the concentration of juice in the bottle is now reduced to 48%, what was the concentration in the punch that Jill added?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The answer in words will be:
(ml of pure juice she ends up with)/(total ml of punch) = 48%
Let = ml of pure juice in punch she added
Given:
ml of 50% punch at start
ml of pure juice at start
-----------------------------------------------

= concentration of punch added

The concentration of the punch she adds must be 33%

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