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s14, q14

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s14, q14

by Suyog » Thu Oct 11, 2007 12:41 pm
If x is an integer, is x | x | < 2x

(1) x < 0
(2) x = - 10

Ans is given as D.

from 1,
when x = -1 then
-1 < -2 : False

but when x = -3
-9 < -8 - True
INSUFF....isn't it?
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Source: — Data Sufficiency |
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by camitava » Fri Oct 12, 2007 2:08 am
Yop! I am agree with Guest! Yah Suyog! Just check one thing - If x < 0, x . |x| < 0 where 2^x > 0 And for x = 10, the answer is coming directly. Right?
Correct me If I am wrong


Regards,

Amitava
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by Suyog » Fri Oct 12, 2007 9:39 pm
yah it is x.|x| < 2^x ( 2 to power of x)

so the ans is B right or still D?

im confused :shock:
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