A set of 10 new questions in each round. Question: ( 1 of 10 ) If Jessica can finish the work in 20 days and Paul can finish the same work in 25 days, then in how many days both can finish the work together? (A) 45 days (B) 11 1/9 days or 11.111 days (C) 22.5 days (D) 22 1/9 days or 22.111 days