If p masons can construct a total of r walls in one hour, how many walls could 5 masons build in 6 hours?

Correct answer marked below

\frac{5}{r}

\frac{6p}{r}

\frac{30p}{r}

\frac{6r}{p}

\frac{30r}{p}

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Official Explanation

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Given that p masons can build r walls in one hour, we can determine the rate for one mason as

\frac{r}{p}

walls per hour. Therefore, 5 masons would work at a rate of…

Comments

PranavJun 23, 2024

thanks a lot

What this question tests

Your ability to combine individual work rates, usually by working with the fraction of a job completed per unit of time.

Adding the times instead of the rates, or forgetting to take the reciprocal when combining rates.