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# If the perimeter of a rectangle is 9 times its width, then its length

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Math Expert
Joined: 02 Sep 2009
Posts: 47037
If the perimeter of a rectangle is 9 times its width, then its length [#permalink]

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04 Oct 2017, 00:38
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Difficulty:

15% (low)

Question Stats:

93% (00:42) correct 7% (00:00) wrong based on 30 sessions

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If the perimeter of a rectangle is 9 times its width, then its length is how many times its width?

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

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Intern
Joined: 17 Apr 2017
Posts: 12
Re: If the perimeter of a rectangle is 9 times its width, then its length [#permalink]

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04 Oct 2017, 00:59
Bunuel wrote:
If the perimeter of a rectangle is 9 times its width, then its length is how many times its width?

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

Perimeter = 2(l+w) = 9w
2l+2w = 9w
2l= 9w - 2w = 7w
l = 7/2 w
l = 3.5 w

Answer : C) 3 1/2 or 3.5
Re: If the perimeter of a rectangle is 9 times its width, then its length   [#permalink] 04 Oct 2017, 00:59
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