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# A triangle has sides of 5 and 10. What is the length of the

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Director
Joined: 04 Jan 2008
Posts: 860
A triangle has sides of 5 and 10. What is the length of the [#permalink]

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09 Apr 2009, 22:56
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100% (00:34) correct 0% (00:00) wrong based on 3 sessions

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A triangle has sides of 5 and 10. What is the length of the third side?
(1) The third side is multiple of 5.
(2) It is an isosceles triangle.

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Director
Joined: 29 Aug 2005
Posts: 836

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10 Apr 2009, 00:56
D.
5<x<15

Smt1; multiple of 5, in this instance, can only be 10
Stmt2; either 5 or 10. Since it can't be 5, it is 10.
Intern
Joined: 07 Feb 2006
Posts: 25

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10 Apr 2009, 04:57
Agreed with Economist, It should be D.
Manager
Joined: 19 Aug 2006
Posts: 232

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11 Apr 2009, 14:23
It's D.

stmnt1 - 5<x<15 => x=10
suffic.

stmnt2 - x=10
SVP
Joined: 04 May 2006
Posts: 1824
Schools: CBS, Kellogg

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12 Apr 2009, 22:20
nitya34 wrote:
A triangle has sides of 5 and 10. What is the length of the third side?
(1) The third side is multiple of 5.
(2) It is an isosceles triangle.

E

1. Third side can be 5, 10,...50..., not suff
2. third side can be 5 or 10, not suff

1 and 2 combined the third side can be 5 or 10, not stuff
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Manager
Joined: 14 Nov 2008
Posts: 188
Schools: Stanford...Wait, I will come!!!

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13 Apr 2009, 00:23
nitya34 wrote:
A triangle has sides of 5 and 10. What is the length of the third side?
(1) The third side is multiple of 5.
(2) It is an isosceles triangle.

statement 1, the value can be only 10.. as range for x is 5<x<15..
statement 2, the value can be only 10, as 5 is not possible.
Director
Joined: 04 Jan 2008
Posts: 860

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13 Apr 2009, 03:32
OA-D
third side can only be 10(in both the cases)

sondenso wrote:
nitya34 wrote:
A triangle has sides of 5 and 10. What is the length of the third side?
(1) The third side is multiple of 5.
(2) It is an isosceles triangle.

E

1. Third side can be 5, 10,...50..., not suff
2. third side can be 5 or 10, not suff

1 and 2 combined the third side can be 5 or 10, not stuff

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SVP
Joined: 04 May 2006
Posts: 1824
Schools: CBS, Kellogg

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13 Apr 2009, 03:37
nitya34 wrote:
OA-D
third side can only be 10(in both the cases)

sondenso wrote:
nitya34 wrote:
A triangle has sides of 5 and 10. What is the length of the third side?
(1) The third side is multiple of 5.
(2) It is an isosceles triangle.

E

1. Third side can be 5, 10,...50..., not suff
2. third side can be 5 or 10, not suff

1 and 2 combined the third side can be 5 or 10, not stuff

Yeah, A triangle has sides of 5 and 10. makes sense now

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This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: Tricky # 1   [#permalink] 13 Apr 2009, 03:37
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