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21 Mar 2017, 05:20
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
80% (00:58) correct
20%
(00:56)
wrong
based on 124
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Two men, Phillip and Omar, start at the same time working separately on similar equally sized jobs, which of the men completes the job first?
(1) Omar takes 6 hours do to the entire job.
(2) Phillip works at a constant rate only stopping for one hour during which he could have done 1/5 of the job.
(1) Omar takes 6 hours do to the entire job.
(2) Phillip works at a constant rate only stopping for one hour during which he could have done 1/5 of the job.
21 Mar 2017, 08:47
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Bunuel
Two men, Phillip and Omar, start at the same time working separately on similar equally sized jobs, which of the men completes the job first?
(1) Omar takes 6 hours do to the entire job.
(2) Phillip works at a constant rate only stopping for one hour during which he could have done 1/5 of the job.
(1) Omar takes 6 hours do to the entire job.
(2) Phillip works at a constant rate only stopping for one hour during which he could have done 1/5 of the job.
(1) Omar takes 6 hours do to the entire job - Not sufficient as we have no clue on Philip's efficiency.
(2) Phillip works at a constant rate only stopping for one hour during which he could have done 1/5 of the job. - Not sufficient as we don't know the efficiency of Omar.
(1) + (2)
Omar takes 6 hours.
Philip completes 1/5th of a job in 1 hour. So time taken to complete the entire job is 5 hours. Since he rests for an hour, the actual time taken is 6 hours.
Both Philip and Omar complete the job in same time. - Not sufficient.
Hence E.
Cheers!
21 Mar 2017, 17:57
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1 is insufficient because we do not know how long it took Phillip to do the entire job
2 is insufficient because we do not know how long it took Phillip and Omar to do the job.
1 & 2 combined - still insufficient because we do not know how long it took Phillip to do the entire job.
Answer: E
2 is insufficient because we do not know how long it took Phillip and Omar to do the job.
1 & 2 combined - still insufficient because we do not know how long it took Phillip to do the entire job.
Answer: E
