Together 3

If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together?

Correct answer:

t =  2.4 h

Step-by-step explanation:

t1=4 h t2=6 h  h1=1/t1=1/4=41=0.25 h2=1/t2=1/6=610.1667  h=h1+h2=0.25+0.1667=1250.4167  t h = 1 t=h1=0.41671=2.4 h



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