SOLUTION: Alma can do the job in 6 days while Rachel can do the same. In 12 days. How long will it take them to do the job. If they work together?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Alma can do the job in 6 days while Rachel can do the same. In 12 days. How long will it take them to do the job. If they work together?       Log On


   

Question 993630: Alma can do the job in 6 days while Rachel can do the same. In 12 days. How long will it take them to do the job. If they work together?
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
HI there,
Alma can do a job in 6 days
Rachel can do the same job in 12 days
Together:
1/6 + 1/12 = 1/x
Common denominator = 12x
2x + x = 12
3x = 12
x = 4 days
Together they can do the job in 4 days.
Hope this helps :-)