SOLUTION: If two painters can paint 2 rooms in 2 hrs, how painters would it take to paint 18 rooms in 6 hrs

Question 983396: If two painters can paint 2 rooms in 2 hrs, how painters would it take to paint 18 rooms in 6 hrs
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Each person performs the task of painting at the same rate.
Rates of people on the task together are simply added.
RT=J to relate rate, time, amount of task.

Let p be the unknown number of painters.

This system is simplifiable.

Find r, first.

Find p.

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