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Manager  Joined: 02 Dec 2012
Posts: 173
The ratio of the length to the width of a rectangular advert  [#permalink]

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3 00:00

Difficulty:   5% (low)

Question Stats: 95% (00:50) correct 5% (01:03) wrong based on 1163 sessions

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The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

(A) 7
(B) 11
(C) 13
(D) 16
(E) 26
Math Expert V
Joined: 02 Sep 2009
Posts: 60633
Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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1
2
The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

(A) 7
(B) 11
(C) 13
(D) 16
(E) 26

Given that $$\frac{length}{width}=\frac{3.3}{2}$$. Since $$width=8$$, then $$\frac{length}{8}=\frac{3.3}{2}$$ --> $$length=8*\frac{3.3}{2}=13.2$$.

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Manager  Joined: 07 Apr 2014
Posts: 98
Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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1
The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

(A) 7
(B) 11
(C) 13
(D) 16
(E) 26

l:w
3.3:2

given width is 8 then 2 *4 ....

we have to do the same with L to find the right ratio.

3.3 * 4 approx 13
SVP  Status: The Best Or Nothing
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Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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Answer $$= 3.3 * \frac{8}{2} = 13.2$$

Manager  S
Joined: 02 Feb 2016
Posts: 115
Location: United States
Concentration: Finance, Technology
Schools: LBS '18, IE April '17
GMAT 1: 620 Q48 V27
Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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ratio is 3.3:2 and width is 8 which means multiplier is 4 (2*4=8). Hence multiply length by 4 as well, instead of 3.3 take 3
so length is 3*4=12 since it is just over it the answer should be 13 (to check multiply 0.3*4=1.2 and add to 12)
Manager  S
Joined: 03 Jan 2017
Posts: 132
Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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we have ration l:w 3,3:2
and w is 8, then 8/2=4
4*3,3=cca 13
Manager  B
Joined: 06 Dec 2016
Posts: 227
Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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My approach:

3.3 is the length
2 is the width

2/5.3 x a = 8
x = 8(5.3)/2
x = 21.2

3.3/5.3 x 21.2
3.3 x 4
13.2

GMAT Club Legend  V
Joined: 12 Sep 2015
Posts: 4225
Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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Top Contributor
The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

(A) 7
(B) 11
(C) 13
(D) 16
(E) 26

This is a matter of EQUIVALENT RATIOS
length/width: 3.3/2 = x/8

Approach #1
Notice that the width increases by a factor of 4 (from 2 to 8)
So, the length must increase be a factor of 4 as well.
3.3(4) = 13.2

Approach #2
3.3/2 = x/8
Cross multiply: (3.3)(8) = (2)(x)
Evaluate: 26.4 = 2x
Solve: x = 13.2

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Joined: 04 Mar 2011
Posts: 2806
Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

(A) 7
(B) 11
(C) 13
(D) 16
(E) 26

Let’s first set up our ratio using variable multipliers.

length : width = 3.3x : 2x

We are given that the width is 8 meters, so we set up the following equation:

2x = 8

x = 4

Thus, we know that the length is (4)(3.3) = 13.2 meters.

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Intern  B
Joined: 01 Jun 2017
Posts: 19
Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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2
The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

Let the length and the width be 3.3x and 2x respectivily.

Now, 2x=8

x=4

therefore, 3.3*4=13.2

Approx Value=13

Ans. C
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Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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The ratio of the length to the width of a rectangular advertising display is approximately 3.3 to 2. If the width of the display is 8 meters, what is the approximate length of the display, in meters?

(A) 7
(B) 11
(C) 13
(D) 16
(E) 26

Length = $$3.3x$$ & Width = $$2x$$

Now, $$2x = 8$$

Or, $$x = 4$$

So, Length $$=3.3*4 = 13.20$$ , Answer must be (C)
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Manager  S
Joined: 20 Jul 2018
Posts: 87
GPA: 2.87
Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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length:width = 3.3:2
length=3.3x
width=2x
as
2x=8
x=4
so
length=3.3*4 =~13
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Re: The ratio of the length to the width of a rectangular advert  [#permalink]

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_________________ Re: The ratio of the length to the width of a rectangular advert   [#permalink] 26 Aug 2019, 21:22
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