A can do a job in 18 days and B can do it in 30 days. In how many days will they finish it together? Choose the correct choice from the following answers:
A) 1/9 B) 4/45 C) 2/7 D) 6/3 E) 5/2
Explanation:   1/18 + 1/30 = 8/90 = 4/45   So, both together will finish the work in 4/45 days.   Answer:4/45
<result>B</result>
A can do a job in 18 days and B can do it in 30 days. In how many days will they finish it together?