प्रत्येक राउंड में 10 नये प्रश्न प्रश्न : ( 2 of 10 ) Scott can finish a work in 81 days. Benjamin can finish the same work in 86 days while Samuel can finish the work in 91 days. How long will it take to finish it if they work together? (A) 28 13342/22163 days or 28.602 days (B) 64.5 days (C) 56 13342/22163 days or 56.602 days (D) 86 days