Problem Solving (PS) | Re: Two carpenters, working in the same pace, can build 2 desks in two hou

Two ways.

First, pieces of the puzzle (just keep using what we know to find one more piece until we get to the answer).
Each of those first 2 carpenters can knock out a desk in 2.5 hours. In 4 hours, one carpenter could do 1 desk in the first 2.5 hours and then he'd have 1.5 hours left. In 1.5 hours, he could do another
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