micheal can paint the grade 8 mahogany room in 6 hours ,but Philip needs 4 hours to paint the same room .how long does it take them to paint the room if they work together?
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micheal can paint the grade 8 mahogany room in 6 hours ,but Philip needs 4 hours to paint the same room .how long does it take them to paint the room if they work together?
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Answer:
The time it would take them to paint is 2.4 hours.
Step-by-step explanation:
Michael = 6 hrs
Philip = 4 hrs
nx + nx = 1
(1/6)x + (1/4)x = 1
(6)(4) [(1/6)x + (1/4)x = 1)] (6)(4)
4x + 6x = 24
2
2x + 3x = 12
5x = 12
x = 12/5
x= 2.4 hrs