P, Q and R can complete a work in 10 days, 20 days and 30 days, respectively, working alone.
P, Q and R can complete a work in 10 days, 20 days and 30 days, respectively, working alone. How soon can the work be completed if P is assisted by Q and R on alternate days? Options:a) 7 daysb) 9 days c) 5 daysd) 6 days Solution As per questionL.C.M. = 10 , 20 […]