Robots X, Y, and Z each assemble components at their respective constant rates. If r(x) is the ratio of Robot X's constant rate to Robot Z's constant rate and r(y) is the ratio of robot Y's constant rate to robot Z's constant rate, is Robot Z's constant rate the greatest of the three?
The question tells us that r(x) is the ratio of robot X's constant rate to robot Z's constant rate. So therefore, r(x) must be equal to X/Z.
Note that the phrasing of this question was not quite right before, which I think is what caused your confusion. I've gone ahead and fixed the question! :)
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