Question 291594
We have more unknowns than  equations.
L=3S
10S+6L=x*L+(24-x)*S
We have 2 equations but 3 unknowns
or 
L=3S
x+y=24
10S+6L=x*L+y*S

We have 3 equations and 4 unknowns.
Not enough info.
We can make more equations but we will have more unknowns.