Answer: a) 4 b) you could make up to 8 liters
Step-by-step explanation:
Answer:
Step-by-step explanation:

First let's multiply the 1st equation by 10.

So, we can see that the equations have the same coefficients and that implies they are equal.
So the equation has no solutions for. 
1. 12/5
2. 24/10
3. 48/20
4. 96/40