A photocopier can copy \(r\) pages per hour. how many pages

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Source: Princeton Review

A photocopier can copy \(r\) pages per hour. How many pages can it copy in \(s\) seconds?

A. \(\frac{rs}{60}\)
B. \(\frac{r}{60s}\)
C. \(\frac{s}{3600r}\)
D. \(\frac{rs}{3600}\)
E. \(3600rs\)

The OA is D
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by Scott@TargetTestPrep » Tue Sep 17, 2019 8:39 am
BTGmoderatorLU wrote:Source: Princeton Review

A photocopier can copy \(r\) pages per hour. How many pages can it copy in \(s\) seconds?

A. \(\frac{rs}{60}\)
B. \(\frac{r}{60s}\)
C. \(\frac{s}{3600r}\)
D. \(\frac{rs}{3600}\)
E. \(3600rs\)

The OA is D
Since s seconds = s/3600 hour, the number of pages that can be copied in s seconds is r x s/3600 = rs/3600.

Answer: D

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