A can do a job in 18 days and B can do it in 30 days. A and B working together will finish twice the amount of work in ------- days? Choose the most appropriate option
A) 22 1/8  B) 22 1/2  C) 22 1/1  D) 22 1/5  E) 22 1/9
1/18 + 1/30 = 8/90 = 4/45   45/4 = 11 ¼ *2 = 22 1/2 days   Answer:22 1/2
<result>B</result>
A can do a job in 18 days and B can do it in 30 days. A and B working together will finish twice the amount of work in ------- days?