SOLUTION: jane takes 4 hours to do a job that mary can do in 3.5 hours and that sara can do in 3 hours. what is marys rate of work?
A. 1/4
B. 1/3
C. 2/7
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-> SOLUTION: jane takes 4 hours to do a job that mary can do in 3.5 hours and that sara can do in 3 hours. what is marys rate of work?
A. 1/4
B. 1/3
C. 2/7
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Question 28325: jane takes 4 hours to do a job that mary can do in 3.5 hours and that sara can do in 3 hours. what is marys rate of work?
A. 1/4
B. 1/3
C. 2/7 Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Trick question
It tells you what Mary's rate of work is. It's 1 job per 3.5 hrs
Tht's 2 jobs per 7 hours or 2/7 jobs per 1 hour.
