Asked by Ken
                If it takes painter # 1 three hours to paint a house, and painter # 2 eight hours to paint a house, how long would it take them if they work together?
            
            
        Answers
                    Answered by
            Reiny
            
    #1's rate = house/3
#2's rate = house/8
combined rate = house/3 + house/8
= 11house/24
so time for combined effort = house/(11house/24)
= 24/11 hours
    
#2's rate = house/8
combined rate = house/3 + house/8
= 11house/24
so time for combined effort = house/(11house/24)
= 24/11 hours
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