Lesson: Challenging Problem Solving - 23

Rates: Average Rates And Combined Rates, Continued

[Page 23 of 37]

Now use the work formula to solve the following problem.

Select the correct answer and then click Continue.
Rob can paint of a room in 2 hours. If Tricia can paint of the same room in 5 hours, how many minutes will it take both of them together to paint of the room?
100
120
135
150
170

 

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