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18 Apr 2017, 03:48
Kudos
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
82% (01:05) correct
18%
(01:19)
wrong
based on 182
sessions
History
Date
Time
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Not Attempted Yet
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) Both machines J and P produce the same number of cans per hour.
(2) 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.
(1) Both machines J and P produce the same number of cans per hour.
(2) 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.
18 Apr 2017, 10:17
Kudos
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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?
We would either need the rate at which machine P produces a lot or the combined rate for machines J and P.
(1) Both machines J and P produce the same number of cans per hour.
As this statement provides the rate at which machine P produces a lot, this statement is sufficient.
(2) 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.
As this statement provides the combined rate for machine J and P to produce the lot, hence this statement is sufficient.
Answer is D
We would either need the rate at which machine P produces a lot or the combined rate for machines J and P.
(1) Both machines J and P produce the same number of cans per hour.
As this statement provides the rate at which machine P produces a lot, this statement is sufficient.
(2) 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.
As this statement provides the combined rate for machine J and P to produce the lot, hence this statement is sufficient.
Answer is D
19 Apr 2017, 00:06
Kudos
Bookmarks
IMO E
since no information is given about the rate of J producing cans.
Waiting for OA
since no information is given about the rate of J producing cans.
Waiting for OA
