Problema Solution
" A litre of orange fruit drink contain 22% orange juice. how many ml of orange juice must be added to produce a mixture containing 50% orange juice"
Answer provided by our tutors
let
x = ml of 100% orange juice to be added to the 1 liter of 22% orange juice
0.22*1000 + 1*x = 0.50(1000 + x)
(notice that 1 liter = 1000 ml)
by solving we find:
x = 560 ml
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560 ml of orange juice must be added to produce the 50% orange juice mixture.