A carpenter worked alone for 1 day on a job that would take him 7 more days to finish. He and another carpenter completed the job in 4 more days. How many days would it have taken the second carpenter to do the complete job working alone?
Choose the correct choice from the following answers
A) 16
B) 7
C) 9
D) 14
E) 24
A carpenter worked only 1 day on something that takes him 7 MORE days.   Means;   Carpenter finishes his work in 8 days.   Let his buddy finish the same task in x days.   Respective rates per day:   1/8 AND 1/x   To complete 1 work:   First guy worked for 5 days @ rate=1/8 per day.   Second one worked for 4 days @ rate=1/x per day   Expression:   Days*Rate=Work   5*1/8+4*1/x=1   5x+32=8x   2x=32   x=16 days.   16ns:16
<result>A</result>
A carpenter worked alone for 1 day on a job that would take him 7 more days to finish. He and another carpenter completed the job in 4 more days. How many days would it have taken the second carpenter to do the complete job working alone?