Need help interpreting weird problem

[hollow rampart]

If the rates are all the same, then wouldn't we have A'(t) = B'(t) = C'(t) = 0 for every t >= 0? And then A, B and C are constant. But that would be really lame. How is the salt going to move around if the rates of transport are all the same? Makes no sense to me

[hollow rampart]

so i think i figured out, but i'd appreciate confirmation about the diff equations that A and B satisfy if anyone would

[lucid holly]

Can I know what you figured out?

[hollow rampart]

i wouldn't like to cuz it would be a better confirmation if someone came to the same conclusion by themselves : (

[lucid holly]

I'm thinking on the same line as you were thinking before