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# If (-1)*X=1,which of the following is an integer? 1)X/(2+X)

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Director
Joined: 10 Oct 2005
Posts: 718
If (-1)*X=1,which of the following is an integer? 1)X/(2+X) [#permalink]

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25 Jan 2006, 00:34
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If (-1)*X=1,which of the following is an integer?
1)X/(2+X)
2)(X-2)/3
3)(X+1)/4

a)none
b)1 only
c)1 and 2 only
d)2 and 3 only
e)1,2 and 3
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Last edited by Yurik79 on 25 Jan 2006, 01:11, edited 1 time in total.
Director
Joined: 10 Oct 2005
Posts: 718

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25 Jan 2006, 01:14
shahnandan wrote:
is it A, none. ?
try again there was a typo !Edited sorry))
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Director
Joined: 26 Sep 2005
Posts: 572
Location: Munich,Germany

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25 Jan 2006, 01:41
corrected: E

can someone post rules regarding zero-

1. when we divide a number by zero
2. when zero is divided by a number
VP
Joined: 21 Sep 2003
Posts: 1057
Location: USA

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25 Jan 2006, 22:06
x = -1
All three are possible. Hence E!
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Director
Joined: 10 Oct 2005
Posts: 718

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25 Jan 2006, 22:20
good job guys E it is))
0/4 is an integer too
I didn't knew that)))
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25 Jan 2006, 22:20
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