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Expert replies
by ern5231 » Sun Aug 16, 2009 2:27 am
Two machines A and B working together can produce 140 units in one hour. How many units can A produce in one hour?
(1) The average units that both machines can do in 1 hour is 70
(2) A can produce 5 more units than B.
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Source: — Data Sufficiency |

by missionGMAT007 » Sun Aug 16, 2009 8:01 am
IMO B

1, not sufficient -> (A+B)/2 = 70
2, sufficient -> x+ (x+5) = 140 => B=x, A= x+5
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by prindaroy » Sun Aug 16, 2009 2:30 pm
Should be E. First one is obviously not sufficient. Second one just says A can produce 5 more machines. 5 more machines per what? hour? minute? second?
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by mehravikas » Sun Aug 16, 2009 5:42 pm
I think we can take it as A produces 5 more units than b in an hour.

Answer should be B
prindaroy wrote:Should be E. First one is obviously not sufficient. Second one just says A can produce 5 more machines. 5 more machines per what? hour? minute? second?
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by ern5231 » Sun Aug 16, 2009 7:37 pm
OA is B
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