My question is about the Word Problems GRE Strategy Guide 2nd Edition - Practice Question Sets in back of the book - Hard practice question solutions #13.
It says 24D = 15M, which I agree with. It says it is turning the equation into the "ratio of muxes to darbles." Why does the solution then go on to do M/D = 24/15? I don't understand why it's 24/15 and not 15/24.