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What is the length of a rectangle that has width 10 and. per

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What is the length of a rectangle that has width 10 and. per [#permalink] New post 27 Jun 2018, 08:21
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What is the length of a rectangle that has width 10 and perimeter 60 ?

(A) 15

(B) 20

(C) 25

(D) 30

(E) 40
[Reveal] Spoiler: OA

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Re: What is the length of a rectangle that has width 10 and. per [#permalink] New post 29 Jun 2018, 04:50
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Carcass wrote:
What is the length of a rectangle that has width 10 and perimeter 60 ?

(A) 15

(B) 20

(C) 25

(D) 30

(E) 40



We know the perimeter of the rectangle = 2 * (Length + Breadth)

or 60 = 2 * (Length + 10)

or Length = 20
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Re: What is the length of a rectangle that has width 10 and. per [#permalink] New post 05 Feb 2020, 00:17
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Simply, one width is 10, so the other width is also 10 as it is a rectangle.
Rest 40 will be equally divided by 20 and 20 thus it will make a perimeter 60.
Re: What is the length of a rectangle that has width 10 and. per   [#permalink] 05 Feb 2020, 00:17
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