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        Column A Together A and ... ...

 

        Column A


Together A and B can do
a job in 6 hours, and
together B and C can do
the same job in 4 hours.

        Column B

Fraction of work done
by A per hour

Fraction of work done
by C per hour

(A) Column A is larger
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Problem Set X: Word Problems

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Replies to This Thread: 1 | ----
        Column A Together A and ... ... 
Posted: 07/15/2013 05:18
I understand the answer but since fraction isn't qualified isn't it possible that A could be larger if it was a higher fraction than C. Therefore choice D would be more accurate.
Contributor
Reply 1 of 1
Replies to This Thread: 0 | ----
 
Posted: 07/15/2013 14:02
Sam, why isn't fraction qualified? Nothing in the problem states that.
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