Question 22951
I have a Lesson on here that explains "Mixture" questions. Have a look at it.


Define x = Amount (in litres) of 30% juice
Now, leap of understanding here... how much of the 5% juice was used? Answer is (25-x) litres.


So, we have 0.30x + 0.05(25-x) = 0.22*25
--> 0.30x + 1.25 - 0.05x = 5.5
--> 0.25x = 4.25
--> x = 4.25/0.25
--> x = 17 litres of the 30% juice


So, there are 25-17 --> 8 litres of the 5% juice.


jon.