I'm self-studying with Stroud & Booth's amazing Engineering Mathemathics, 7th edition. I'm stuck at a problem set that gives me two ratios of variables A and B, and B and C respectively, an expects me to "unify" them, so to speak, in order to produce an A:B:C ratio. To be more precise:
A, B and C are mixed according to the ratios $A:B = 2:5$ and $B:C = 10:11$. Find the common ratio $A:B:C$.
Just please keep in mind that I'm still on the first chapter, Arithmetic.