Sam and his friend are working at the body shop. Sam can do the work in 7hours. When his friend is helping him they do the same work in 4 hours. How long does it take Sam's friend to do this work alone?

asked Jun 15, 2022 84.2k views

9 votes

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5 votes

Answer:

28/3

Explanation:

because 1/7+x=1/4

x=3/28

recipricol of 3/28=28/3

28/3

Seveleven answered Jun 22, 2022

4.3k points

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