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If the perimeter of the triangle above is 19, then x =

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Joined: 02 Sep 2009
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If the perimeter of the triangle above is 19, then x = [#permalink]

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New post 01 Sep 2017, 07:43
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Difficulty:

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Question Stats:

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If the perimeter of the triangle above is 19, then x =

(A) 8
(B) 6
(C) 5 3/4
(D) 4
(E) 3 1/2

[Reveal] Spoiler:
Attachment:
2017-09-01_1836_003.png
2017-09-01_1836_003.png [ 4.51 KiB | Viewed 304 times ]
[Reveal] Spoiler: OA

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Kudos [?]: 124106 [0], given: 12071

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Joined: 04 Dec 2015
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Kudos [?]: 262 [0], given: 261

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Re: If the perimeter of the triangle above is 19, then x = [#permalink]

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New post 01 Sep 2017, 08:01
Bunuel wrote:
Image
If the perimeter of the triangle above is 19, then x =

(A) 8
(B) 6
(C) 5 3/4
(D) 4
(E) 3 1/2

[Reveal] Spoiler:
Attachment:
2017-09-01_1836_003.png

Perimeter \(= (x) + (x-1)+ (2x-4) = 19\)

\(x + x-1 + 2x-4 = 19\)

\(4x - 5 = 19\)

\(4x = 19 + 5 = 24\)

\(x = \frac{24}{4} = 6\)

Answer (B)...

Kudos [?]: 262 [0], given: 261

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Kudos [?]: 11 [0], given: 78

Concentration: Finance, Entrepreneurship
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Re: If the perimeter of the triangle above is 19, then x = [#permalink]

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New post 07 Sep 2017, 13:52
Perimeter of given triangle = 19

also, perimeter = x+x-1+2x-4
= 4x -5

now, as both perimeter values are equal, we have

4x-5 = 19
x = 6

Option : B

Kudos [?]: 11 [0], given: 78

Re: If the perimeter of the triangle above is 19, then x =   [#permalink] 07 Sep 2017, 13:52
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If the perimeter of the triangle above is 19, then x =

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