One canned juice drink is 25% O.J, another is 10% O.J. How many liters of each should be mixed together in order to get 15L that is 21% O.J.?
Mix together $\displaystyle x$ litres of J1, and $\displaystyle y$ litres of J2.Originally Posted by sh0rtys463
Then:
$\displaystyle
x+y=15\ \ \
$ (to give 15 litres of juice)
and
$\displaystyle
0.25\times x +0.1 \times y=0.21 \times 15\ \ \
$ (this is the amount of juice in the product)
Now your problem is to solve these simultaneous linear equations.
RonL