प्रत्येक राउंड में नये 10 प्रश्न हैं। प्रश्न : ( 1 of 10 ) Ashley can finish a work in 36 days. Emily can finish the same work in 41 days while Donna can finish the work in 46 days. How long will it take to finish it if they work together? (A) 41 days (B) 26 1331/2509 days or 26.53 days (C) 30.75 days (D) 13 1331/2509 days or 13.53 days