A and B can do a work in 18 days, B and C in 30 days and C and A in 36 days. In how many days will the work be completed, if all three of them work together?  Select
A) 360/13 days B) 350/13 days C) 160/13 days D) 260/13 days E) 960/13 days
One day work of A and B = 1/18   One day work of B and C = 1/30   One day work of C and A = 1/36   2(A + B + C) = 1/18 + 1/30 + 1/36   2(A + B + C) = 21/180   (A + B + C) = 13/360   Number of days required = 360/13 days.   360/13 daysNSWER:360/13 days
<result>A</result>
A and B can do a work in 18 days, B and C in 30 days and C and A in 36 days. In how many days will the work be completed, if all three of them work together?