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Three men can paint a barn in 12 hours.  How long will it take two men to paint a barn?

May 26, 2020

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Three men can paint a barn in 12 hours.  How long will it take two men to paint a barn?

Hello Guest!

$$\color{blue}W=N\cdot t\cdot n\\ N=\frac{W}{t\cdot n}=\frac{W}{12h\cdot 3}$$

$$N=\frac{W}{36h}$$

$$W=N\cdot t\cdot n\\ W=\frac{W}{36h}\cdot t\cdot 2\\ t=\frac{W\cdot 36h}{2W}$$

$$t=18h$$

Two men can paint a barn in 18 hours.

!

May 26, 2020