Problema Solution
John can do a piece of work in 6 days. When he and Marsha work together, it takes only 4 days. How long will it take Marsha to do the work if she works alone?
Answer provided by our tutors
let 'x' represent the amount of time it takes Marsha to do the work alone, then:
1/4 = 1/6 + 1/x
solving for 'x' we have x=12
It would take Marsha 12 days to do the work alone