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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
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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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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
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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.

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Intern
Joined: 07 Feb 2006
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10 Apr 2009, 04:57
Agreed with Economist, It should be D.

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

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

stmnt2 - x=10

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SVP
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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
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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.

Kudos [?]: 130 [0], given: 3

Director
Joined: 04 Jan 2008
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Kudos [?]: 766 [0], given: 17

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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

_________________

http://gmatclub.com/forum/math-polygons-87336.html
http://gmatclub.com/forum/competition-for-the-best-gmat-error-log-template-86232.html

Kudos [?]: 766 [0], given: 17

SVP
Joined: 04 May 2006
Posts: 1878

Kudos [?]: 1443 [0], given: 1

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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Kudos [?]: 1443 [0], given: 1

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