A, B and C, each working alone can complete a job in 6, 8 and 12days respectively. If all three of them work together to complete a job and earn $2500, what will be C's share of the earnings?
Pick one.
A) $1200  B) $1005.8  C) $555.6  D) $1009.2  E) $1490.7
The dollars earned will be in the same ratio as amount of work done   1 day work of $555.6 is 1/12 (or 2/24)   1 day work of the combined workforce is (1/6 + 1/8 + 1/12) = 9/24   $555.6's contribution is 2/9 of the combined effort   Translating effort to $ = 2/9 * 2500 = $555.6
<result>C</result>
A, B and C, each working alone can complete a job in 6, 8 and 12days respectively. If all three of them work together to complete a job and earn $2500, what will be C's share of the earnings?