Two painters paint

If two painters can complete two rooms in two hours, how many painters would it take to do 18 rooms in 6 hours?

It would take six painters. Two painters can complete two rooms in 2 hours, so four man hours for two rooms which is two man hours per room.So 18 rooms requires 2 X18 = 36 man hours.36 man hours for six hours means 36 / 6 = 6 men are working 6 hours to paint 18 rooms.

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