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GRE Math Challenge #118-A rectangular field is 400 feet long
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15 May 2015, 11:59
15 May 2015, 11:59
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Question Stats:
86% (00:48) correct
13% (00:56) wrong based on 107 sessions
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A rectangular field is 400 feet long and 300 feet wide. If a square field has, the same perimeter as the rectangular field, what is the length, in feet, of each side of the square field?
(A) 175
(B) 350
(C) 200 √2
(D) 350 √2
(E) 100 √3
(A) 175
(B) 350
(C) 200 √2
(D) 350 √2
(E) 100 √3
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Re: GRE Math Challenge #118
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16 May 2015, 15:06
16 May 2015, 15:06
1
sandy wrote:
A rectangular field is 400 feet long and 300 feet wide. If a square field has, the same perimeter as the rectangular field, what is the length, in feet, of each side of the square field?
(A) 175
(B) 350
(C) 200 √2
(D) 350 √2
(E) 100 √3
(A) 175
(B) 350
(C) 200 √2
(D) 350 √2
(E) 100 √3
Perimeter of the rectangular field = 400 + 300 + 400 + 300 = 1400
This means the perimeter of the SQUARE field = 1400
A square has 4 sides of EQUAL length.
So, each side of the square must have length = 1400/4 = 350
Answer:
Show: ::
B
Cheers,
Brent
Re: GRE Math Challenge #118-A rectangular field is 400 feet long
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07 May 2021, 11:06
07 May 2021, 11:06
Perimeter of rectangle = (400+300)*2 = 1400
Perimeter of square = 4a
4a = 1400
a = 1400/4 = 350
Hence, option (B) is the correct answer.
Perimeter of square = 4a
4a = 1400
a = 1400/4 = 350
Hence, option (B) is the correct answer.
