Working independently Susan can perform a certain task in 6 hours and tom can perform in 7 hours. Tom and Susan wrk at the task for 3 hours, at which point susan leaves. How many hours will it take tom to
complete the task alone. a)1/14 b)2/5 c)1/2 d)29/42 e)1 SPOILER: OA=D This is how Im approaching it but I do not get to the correct answer. One hour;s combined work 1/6 + ...