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It takes Sam 3 hours to do all of the yard work, but it takes his brother Carl only 2 hours. How long, in hours, would take them to do the yard work if they work together?

A.

5/6


B.

2/3


C.

6/5


D.

3/2

Respuesta :

The answer is 6/5 may i be brainliest answer 
irspow
Find their rates of work

S=1/3, C=1/2

So for them working together:

t/3+t/2=1  making a common denominator of 6

2t/6+3t/6=1

5t/6=1

5t=6

t=6/5

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