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If two copying machines work simultaneously at their

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Senior Manager
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If two copying machines work simultaneously at their [#permalink] New post 23 Feb 2005, 19:31
00:00
A
B
C
D
E

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If two copying machines work simultaneously at their respective constant rates, how many copies do they produce in 5 minutes?
(1) One of the machines produces copies at the constant rate of 250 copies per minute.
(2) One of the machines produces copies at twice the constant rate of the other machine.
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 [#permalink] New post 23 Feb 2005, 21:47
E. It is a trick question. Think about it you will figure out.
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 [#permalink] New post 23 Feb 2005, 23:12
E it is - and not C - which might have been a forced conclusion.
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 [#permalink] New post 23 Feb 2005, 23:29
my answer is E
a) know information about the other machine unsuff
b) unsuff either
Together from b can be 2 variants 500 or 125 copies per minute for the second machine
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 [#permalink] New post 24 Feb 2005, 02:26
E
as we dont know have any clue of which perform what
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 [#permalink] New post 24 Feb 2005, 06:09
another E.

I) the rate of one machine is not enough to calculate .
II) this info alone is not enough

I) & II) We don't know which of the following 2 cases:-
250 & 500
125 & 250
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 [#permalink] New post 25 Feb 2005, 14:41
Should be E as we don't know which one is greater
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 [#permalink] New post 25 Mar 2005, 20:52
is it E because the machine referred to in B could be the one referred to in A or the other machine?
  [#permalink] 25 Mar 2005, 20:52
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