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Source: — Data Sufficiency |

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by Rahul@gurome » Sat Sep 11, 2010 2:44 am
(1) If a = -2 and b = 1, then a.|b| = (-2).|1| = -2 and a - b = (-2) - 1 = -3; here a · |b| > a - b
If a = -2 and b = -1, then a.|b| = (-2).|-1| = -2 and a - b = (-2) + 1 = -1; here a · |b| < a - b
No unique answer.
So, (1) is NOT SUFFICIENT.

Pradeep, can you please check the 2nd statement? Some inequality sign seems to be missing.
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