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by ankur.agrawal » Fri Apr 01, 2011 7:00 am
If a and b are integers, and |a| > |b|, is a · |b| < a - b?

(1) a < 0

(2) ab>= 0.

HOW DO WE DO THIS SAY IN 2.5 MIN.?
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Source: — Data Sufficiency |
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by manpsingh87 » Fri Apr 01, 2011 7:09 am
ankur.agrawal wrote:If a and b are integers, and |a| > |b|, is a · |b| < a - b?

(1) a < 0

(2) ab>= 0.

HOW DO WE DO THIS SAY IN 2.5 MIN.?
please go through the following post..!!
https://www.beatthegmat.com/geez-shld-we ... 80398.html
O Excellence... my search for you is on... you can be far.. but not beyond my reach!
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by atulmangal » Sun Apr 03, 2011 3:40 pm
ankur.agrawal wrote:If a and b are integers, and |a| > |b|, is a · |b| < a - b?

(1) a < 0

(2) ab>= 0.

HOW DO WE DO THIS SAY IN 2.5 MIN.?
Is the ans is A..???
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by ankur.agrawal » Sun Apr 03, 2011 7:55 pm
atulmangal wrote:
ankur.agrawal wrote:If a and b are integers, and |a| > |b|, is a · |b| < a - b?

(1) a < 0

(2) ab>= 0.

HOW DO WE DO THIS SAY IN 2.5 MIN.?
Is the ans is A..???
No Its E
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by GMATGuruNY » Mon Apr 04, 2011 3:36 am
ankur.agrawal wrote:If a and b are integers, and |a| > |b|, is a · |b| < a - b?

(1) a < 0

(2) ab>= 0.

HOW DO WE DO THIS SAY IN 2.5 MIN.?
Try to plug in values that satisfy all the conditions given.

Let a = -2, b = -1.
Given condition: |a| > |b| --> |-2| > |-1|
Statement 1: a < 0 --> -2 < 0
Statement 2: ab ≥ 0 --> (-2)(-1) ≥ 0
Is a · |b| < a - b?
-2*|-1|< -2 - (-1)
-2 < -1. Yes.

Let a = -2, b = 0.
Given condition: |a| > |b| --> |-2| > |0|
Statement 1: a < 0 --> -2 < 0
Statement 2: ab ≥ 0 --> (-2)(0) ≥ 0
Is a · |b| < a - b?
-2*|0|< -2 - (0)
0 < -2. No.

Since the values above satisfy both statements, and in the first case the answer is Yes and in the second case the answer is No, INSUFFICIENT.

The correct answer is E.
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