SOLUTION: Dave and his son can do a job in 4 1/2 days. After they have worked for 3 days, Dave got sick, and the son finished the task in 6 more days. How many days each is required to do th

Question 329349: Dave and his son can do a job in 4 1/2 days. After they have worked for 3 days, Dave got sick, and the son finished the task in 6 more days. How many days each is required to do the entire task?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
in the 3 days they worked together , they completed 2/3 of the job (3 / 4 1/2)

so the son took 6 days to do 1/3 of the job ___ it would take him 18 days to do the job by himself

in 4 1/2 days , the son does 1/4 of the job (4 1/2 / 18)

so Dave does 3/4 of the job in 4 1/2 days ___ it would take him 6 days to do the job by himself (4 1/2 / 3/4)
RELATED QUESTIONS
Doy and his son can do a job in 4 1/2 days. After that they have worked for 3 days, Doy... (answered by ankor@dixie-net.com)

Doy and his son can do a job in 4 1/2 days, After they have worked for 3 days, Doy got... (answered by ankor@dixie-net.com)

doy and his son could do a job in 4 days. after they had worked for 3 days. day got sick... (answered by josgarithmetic,ikleyn,MathTherapy)

Working together Jen and Dave can build a deck in 6 days. by himself Dave can do his job... (answered by Boreal,ikleyn)

A man can do a piece of work in 9 hours. After he worked 3 hours alone, he was joined by... (answered by oberobic)

A man can do a job in 9 days and his son can do the same job in 16 days. They start... (answered by ptaylor)

Working together, a job takes Tom and Joe 8 days, Tom and Dave 13 1/3 days, and Joe and... (answered by Edwin McCravy)

urgent.. working together, alice and betty can do a certain job in 4 1/3 days. but alice (answered by ptaylor)

I have received the solution that you sent to me..thanks a lot. but i need again your... (answered by ankor@dixie-net.com)