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Vincen
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It would take one machine \(4\) hours to complete a large production order and another machine \(3\) hours to complete the same order. How many hours would it take both machines, working simultaneously at their respective constant rates, to complete the order?
(A) \(\dfrac7{12}\)
(B) \(1\frac12\)
(C) \(1\frac57\)
(D) \(3\frac12\)
(E) \(7\)
Answer: C
Source: Official Guide
(A) \(\dfrac7{12}\)
(B) \(1\frac12\)
(C) \(1\frac57\)
(D) \(3\frac12\)
(E) \(7\)
Answer: C
Source: Official Guide
