Robots X, Y, and Z each assemble

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?

2 Explanations

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Kalifa Howard

Why are we saying that rx = X/Z?

Jan 23, 2016 • Comment

Sam Kinsman, Magoosh Tutor

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! :)

Jan 24, 2016 • Reply

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Mike McGarry, Magoosh Tutor