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Machines \(X\) and \(Y\) work at their respective constant rates. How many more hours does it take machine \(Y,\) workin

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by VJesus12 » Fri Dec 10, 2021 8:25 am

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Machines \(X\) and \(Y\) work at their respective constant rates. How many more hours does it take machine \(Y,\) working alone, to fill a production order of a certain size than it takes machine \(X,\) working alone?

(1) Machines \(X\) and \(Y,\) working together, fill a production order of this size in two-thirds the time that machine \(X,\) working alone, does.

(2) Machine \(Y,\) working alone, fills a production order of this size in twice the time that machine \(X,\) working alone, does.

Answer: E

Source: GMAT Prep
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