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Machine J runs at a constant rate and produces a lot consisting of 300

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Machine J runs at a constant rate and produces a lot consisting of 300 [#permalink]

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New post 21 Mar 2017, 04:35
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  15% (low)

Question Stats:

90% (00:37) correct 10% (01:16) wrong based on 46 sessions

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Machine J runs at a constant rate and produces a lot consisting of 300 bottles in 4 hours. How much less time would it take to produce the lot of cans if both machines J and P were run simultaneously?

(1) It takes machine J twice as long to produce the lot of cans as it takes machines J and P running simultaneously to produce the lot.
(2) Machines J and P both started at 6 a.m.

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Re: Machine J runs at a constant rate and produces a lot consisting of 300 [#permalink]

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New post 21 Mar 2017, 04:51
Looks like A is the answer.

1. J takes twice the time J and P would take i.e. 2 hrs extra. Sufficient.
2. Info that they start at 6 am Doesn't add any value to the question. Insufficient.
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Re: Machine J runs at a constant rate and produces a lot consisting of 300 [#permalink]

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New post 22 Mar 2017, 21:13
Bunuel wrote:
Machine J runs at a constant rate and produces a lot consisting of 300 bottles in 4 hours. How much less time would it take to produce the lot of cans if both machines J and P were run simultaneously?

(1) It takes machine J twice as long to produce the lot of cans as it takes machines J and P running simultaneously to produce the lot.
(2) Machines J and P both started at 6 a.m.



IMO :A

STMT 1 -- J takes "twice" as long to produce the lot of cans as it takes machines J and P running simultaneously to produce the lot. 2 hours less time
STMT 2: what time they started is irrelevant to our question.
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Re: Machine J runs at a constant rate and produces a lot consisting of 300   [#permalink] 22 Mar 2017, 21:13
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Machine J runs at a constant rate and produces a lot consisting of 300

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