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Source: — Data Sufficiency |
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by Morgoth » Sat Oct 04, 2008 9:03 pm
Statement (1)
slope of line k is negative.
Since the line passes through the origin, the line will be drawn from bottom right to top left, therefore b can be positive if a,b lies in the second quadrant, b could also be negative if a,b lies in the fourth quadrant. Insufficient.

Statement (2)
a<b, same reasoning as above. Insufficient.

Combining (1) & (2)

we know in second quadrant a<b, slope is negative, therefore b is positive. Sufficient.

Thus, C.

OA?
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by stubbornp » Sun Oct 05, 2008 7:31 pm
oa C....
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