Question 304378
Lisa will make punch that is 25% fruit juice by adding pure fruit juice to a 2-liter mixture that is 10% pure fruit juice. How many liters of pure fruit juice does she need to add?

pure fruit juice 100% let the quantity required be x

10% juice - 2 liters

Total 25% --x+2 liters

x+0.10*2 = 0.25(x+2)

x+0.2=0.25x+0.5

0.75x= 0.3

x= 0.3 / 0.75

=0.4 liters of 100% fruit juice

Ananth

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