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A certain rectangular window is twice as long as it is wide.

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A certain rectangular window is twice as long as it is wide. [#permalink] New post 17 Dec 2012, 06:21
00:00
A
B
C
D
E

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Question Stats:

81% (01:45) correct 18% (00:36) wrong based on 133 sessions
A certain rectangular window is twice as long as it is wide. If its perimeter is 10 feet, then its dimensions in feet are

(A) 3/2 by 7/2
(B) 5/3 by 10/3
(C) 2 by 4
(D) 3 by 6
(E) 10/3 by 20/3
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Re: A certain rectangular window is twice as long as it is wide. [#permalink] New post 17 Dec 2012, 06:26
Expert's post
Walkabout wrote:
A certain rectangular window is twice as long as it is wide. If its perimeter is 10 feet, then its dimensions in feet are

(A) 3/2 by 7/2
(B) 5/3 by 10/3
(C) 2 by 4
(D) 3 by 6
(E) 10/3 by 20/3


Given that P = 2l + 2w = 10, where l and w are the length and width in feet, respectively. Since, also given that l = 2w, then we have that 2l + l = 10 --> l = 10/3 --> w = l/2 = 10/6 = 5/3.

Answer: B.
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Re: A certain rectangular window is twice as long as it is wide. [#permalink] New post 17 Dec 2012, 06:31
Walkabout wrote:
A certain rectangular window is twice as long as it is wide. If its perimeter is 10 feet, then its dimensions in feet are

(A) 3/2 by 7/2
(B) 5/3 by 10/3
(C) 2 by 4
(D) 3 by 6
(E) 10/3 by 20/3


L = 2W

Perimeter = 2(L+W) = 2(2W + W) = 6W = 10(given)
W = 10/6 = 5/3
L = 2W = 10/3

Answer will be B
Hope it helps!
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A certain rectangular window is twice as long as it is wide [#permalink] New post 25 Dec 2012, 12:00
A certain rectangular window is twice as long as it is wide. If its perimeter is 10 feet, then its dimensions in feet are

(A) \frac{3}{2} by \frac{7}{2}

(B) \frac{5}{3} by \frac{10}{3}

(C) 2 by 4

(D) 3 by 6

(E) \frac{10}{3} by \frac{20}{3}

Relatively easy question, except for the confusing term - "twice as long as it is wide", which I happen to screw up over. Did someone happen to compile a list of these confusing statements in word problems? If so, please do share, it would be immensely helpful for me, and I am sure for other members as well.
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Re: A certain rectangular window is twice as long as it is wide [#permalink] New post 25 Dec 2012, 13:01
megafan wrote:
A certain rectangular window is twice as long as it is wide. If its perimeter is 10 feet, then its dimensions in feet are

(A) \frac{3}{2} by \frac{7}{2}

(B) \frac{5}{3} by \frac{10}{3}

(C) 2 by 4

(D) 3 by 6

(E) \frac{10}{3} by \frac{20}{3}

Relatively easy question, except for the confusing term - "twice as long as it is wide", which I happen to screw up over. Did someone happen to compile a list of these confusing statements in word problems? If so, please do share, it would be immensely helpful for me, and I am sure for other members as well.


Ya its quite easy....

twice as long as it is wide means : l=2w

Given p=10
2(l+w)=10
l+w=5
2w+w=5
w=5/3
and l = 10/3

If u feel difficult in understanding "twice as long as it is wide", since length should be always greater than width and here it is twice l=2w
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Re: A certain rectangular window is twice as long as it is wide [#permalink] New post 26 Dec 2012, 02:46
Expert's post
megafan wrote:
A certain rectangular window is twice as long as it is wide. If its perimeter is 10 feet, then its dimensions in feet are

(A) \frac{3}{2} by \frac{7}{2}

(B) \frac{5}{3} by \frac{10}{3}

(C) 2 by 4

(D) 3 by 6

(E) \frac{10}{3} by \frac{20}{3}

Relatively easy question, except for the confusing term - "twice as long as it is wide", which I happen to screw up over. Did someone happen to compile a list of these confusing statements in word problems? If so, please do share, it would be immensely helpful for me, and I am sure for other members as well.


Merging similar topics.

Please search the questions before posting.
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NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

COLLECTION OF QUESTIONS:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS ; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
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A certain rectangular window is twice as long as it is wide. If [#permalink] New post 04 Apr 2013, 15:09
bmwhype2 wrote:
A certain rectangular window is twice as long as it is wide. If its perimeter is 10 feet, then its dimensions in feet are
(A) 3/2 by 7/2
(B) 5/3 by 10/3
(C) 2 by 4
(D) 3 by 6
(E) 10/3 by 20/3


my answer was B. Answer Key says E.



Width = x
Length= 2x
Perimeter = x+x+2x+2x = 6X
6x = 10
x= \frac{5}{3}

Therefore, dimensions are:
Width = \frac{5}{3}
Length = 2*\frac{5}{3} = \frac{10}{3}


B all the way
A certain rectangular window is twice as long as it is wide. If   [#permalink] 04 Apr 2013, 15:09
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