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Weekly Problem 14 - 2006

Stage: 3 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3
It takes $ab$ man hours to paint $c$ square metres of the bridge and therefore $\frac {ab}{c}$ man-hours to paint $1$ square metre of the bridge. So $d$ men will take $\frac {ab}{cd}$ hours to paint $1$ square metre and $\frac {abe}{cd}$ hours to paint $e$ square metres.

This problem is taken from the UKMT Mathematical Challenges.

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