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Solve the Problem. -Martha Can Rake the Leaves in Her Yard in 5

Question 160

Multiple Choice

Solve the problem.
-Martha can rake the leaves in her yard in 5 hours. Her younger brother can do the job in 7 hours. How long will it take them to do the job if they work together?


A) Solve the problem. -Martha can rake the leaves in her yard in 5 hours. Her younger brother can do the job in 7 hours. How long will it take them to do the job if they work together? A) B) C) 7 hr D)
B) Solve the problem. -Martha can rake the leaves in her yard in 5 hours. Her younger brother can do the job in 7 hours. How long will it take them to do the job if they work together? A) B) C) 7 hr D)
C) 7 hr
D) Solve the problem. -Martha can rake the leaves in her yard in 5 hours. Her younger brother can do the job in 7 hours. How long will it take them to do the job if they work together? A) B) C) 7 hr D)

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