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Machine A, machine B, and machine C, working together at their respec

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Machine A, machine B, and machine C, working together at their respec  [#permalink]

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New post 11 Apr 2019, 10:58
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  45% (medium)

Question Stats:

67% (00:45) correct 33% (00:39) wrong based on 6 sessions

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Machine A, machine B, and machine C, working together at their respective constant rates, can complete a certain job in 24 hours. How many hours would it take machine A, working alone at its constant rate, to complete the same job?

(1) Machines B and C, working together at their respective constant rates, can complete the job in 36 hours.

(2) Machines A and C, working together at their respective constant rates, can complete the job in 48 hours.

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Re: Machine A, machine B, and machine C, working together at their respec  [#permalink]

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New post 11 Apr 2019, 11:00
Noshad wrote:
Machine A, machine B, and machine C, working together at their respective constant rates, can complete a certain job in 24 hours. How many hours would it take machine A, working alone at its constant rate, to complete the same job?

(1) Machines B and C, working together at their respective constant rates, can complete the job in 36 hours.

(2) Machines A and C, working together at their respective constant rates, can complete the job in 48 hours.


Discussed here: https://gmatclub.com/forum/machine-a-ma ... fl=similar
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Re: Machine A, machine B, and machine C, working together at their respec   [#permalink] 11 Apr 2019, 11:00
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Machine A, machine B, and machine C, working together at their respec

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