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Small corrections:earth@work wrote: (tom+susan): 1 hour.........13/14th work
(tom+susan): 3 hour.........(13/14)*3 th work = 13/14
Wow....that's an excellent short cut. So far I was trying to solve these type of problems in the routine elaborate way.logitech wrote:3/6 + (3+x)/7 = 1
X=1/2
logitech wrote:3/6 + (3+x)/7 = 1
X=1/2
SUPER!!!Suppose there is 42 unit of work. In 1 hr Susan do = 7 units, in 1 hr TOm do = 6 units.Abdulla wrote:Working independently, Susan can perform a task in 6 hours and Tom can perform it in 7 hours. If Susan and Tom work together 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
OA is C
I will be around4meonly wrote:logitech wrote:3/6 + (3+x)/7 = 1
X=1/2
logitech, please DO NOT schedule your GMAT till May!!!! We need you))))
