GMAT Data Sufficiency (DS) | Re: Robots X, Y, and Z each assemble components at their respect

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?

(1) \(r_x<r_y\)
(2) \(r_y<1\)