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Who is the fastest among the three workers a, b and c? (1) a
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17 Jan 2004, 18:55
17 Jan 2004, 18:55
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A
B
C
D
E
Difficulty:
35%
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Question Stats:
63% (00:38) correct
38%
(00:50)
wrong
based on 8
sessions
Who is the fastest among the three workers a, b and c?
(1) a and b together take 12 hours to complete a job
(2) a, b and c working together can complete the job in 6 hours
(1) a and b together take 12 hours to complete a job
(2) a, b and c working together can complete the job in 6 hours
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Re: Who is the fastest among the three workers a, b and c? (1) a
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17 Jan 2004, 19:55
17 Jan 2004, 19:55
E? A, B and D are ruled out. of C and E, C is ruled out becoz we can find out that a and b can finish in 12 hrs and c alone in 12 hrs but we cant find out the fastest between a and c. Need more data.
Re: Who is the fastest among the three workers a, b and c? (1) a
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17 Jan 2004, 20:08
17 Jan 2004, 20:08
rakesh1239 wrote:
E? A, B and D are ruled out. of C and E, C is ruled out becoz we can find out that a and b can finish in 12 hrs and c alone in 12 hrs but we cant find out the fastest between a and c. Need more data.
I choose to differ. I would like to go with C
With C, we know that c alone can finish the job in 12 hours whereas a and b together takes 12 hours. If a and b TOGETHER take 12 hours, that means for all those 12 hours they both will be working and then only they will be able to finish. This will lead to the conclusion that if any of them works independently, he/she will take more than 12 hours to finish the job. So this indicates that c is the fastest.
Any comments?
