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type a certain manuscript

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by sanju09 » Thu Sep 16, 2010 11:24 pm
If one typist can type a certain manuscript in 8 minutes, while another typist can type the same manuscript in 12 minutes, how long would it take both typists, working simultaneously, to type the manuscript?
(A) 3 minutes, 36 seconds
(B) 4 minutes, 48 seconds
(C) 5 minutes, 15 seconds
(D) 6 minutes
(E) 10 minutes



[spoiler]Source: https://www.west.net/~stewart/gmat[/spoiler]
The mind is everything. What you think you become. -Lord Buddha



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by goyalsau » Thu Sep 16, 2010 11:47 pm
option B.
please confirm the confirm then i try to explain.
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by sanju09 » Fri Sep 17, 2010 12:01 am
goyalsau wrote:option B.
please confirm the confirm then i try to explain.
ok, it's [spoiler]B[/spoiler]

now?
The mind is everything. What you think you become. -Lord Buddha



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