A and B can do a work in 18 day, B and C in 30 days, A and C in 22 (1/2) days. In how many days can A,B and C individually do the work? Choose the most appropriate option: A) 30,45,90 B) 30,45,60 C) 30,45,40 D) 30,43,60 E) 30,44,60
(A+B+C)'s two days work = 1/18 + 1/30 + 2/45   = (5 + 3 + 4)/90 = 2/15   (A+B+C)'s one day work = 2/15 * 1/2 = 1/15   A's one day's work = 1/15 - 1/30 = 1/30   B's one day's work = 1/15 - 2/45 = 1/45   C's one day's work = 1/15 - 1/18= 1/90   So, A,B and C can individually do the work in 30, 45 and 90 days.   30,45,90nswer:30,45,90
<result>A</result>
A and B can do a work in 18 day, B and C in 30 days, A and C in 22 (1/2) days. In how many days can A,B and C individually do the work?