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atomy
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highest rate 21 Jul 2009, 12:35
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The rate of A, B, and C to do a certain work respectively is 1/6, 1/7, and 1/8. If two of them

are to be selected at random to do the work together, what is the highest possible rate?

there are no options guys, it is a concept problem..



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highest rate 21 Jul 2009, 13:07
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shouldnt it be the sum of the max two rates .. i.e. 1/6 + 1/7 ?
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irajeevsingh
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highest rate 21 Jul 2009, 20:58
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yeah agree with gmanjesh, whats the context BTW.
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gmanjesh
shouldnt it be the sum of the max two rates .. i.e. 1/6 + 1/7 ?
Show more

If we're talking about rate then the maximum rates would be 1/7 + 1/8 which are quickest workers (finishing in less time).

Please post answer. It's been a week.... :roll:
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highest rate 31 Jul 2009, 10:56
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mendelay
gmanjesh
shouldnt it be the sum of the max two rates .. i.e. 1/6 + 1/7 ?

If we're talking about rate then the maximum rates would be 1/7 + 1/8 which are quickest workers (finishing in less time).

Please post answer. It's been a week.... :roll:
Show more
1/6 is the highest rate...this guy takes 6 hours to complete one job
1/7..this guy takes 7 hours to complete one job
1/8..this guy takes 8 hours to complete one job

so 1/6 is doing work at a greater pace or a higher rate..followed by 1/7 and 1/8
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among the 3, 1/6 is the highest rate. then 1/7 and 1/8.
so, two highest rates should be 1/6 and 1/7



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