A carpenter worked alone for 1 day on a job that would take him 6 more days to finish. He and another carpenter completed the job in 5 more days. How many days would it have taken the second carpenter to do the complete job working alone? Choices.
A) 4.5	B) 7.5	C) 9.5	D) 17.5	E) 24.5
A carpenter worked only 1 day on something that takes him 6 MORE days.   Means;   Carpenter finishes his work in 7 days.   Let his buddy finish the same task in x days.   Respective rates per day:   1/7 AND 1/x   To complete 1 work:   First guy worked for 5 days @ rate=1/7 per day.   Second one worked for 5 days @ rate=1/x per day   Expression:   Days*Rate=Work   5*1/7+5*1/x=1   5x+35=7x   2x=35   x=17.5 days.   Ans:17.5
<result>D</result>
A carpenter worked alone for 1 day on a job that would take him 6 more days to finish. He and another carpenter completed the job in 5 more days. How many days would it have taken the second carpenter to do the complete job working alone?