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DI Set #5-number of televisions to the number

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soumya1989
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DI Set #5-number of televisions to the number [#permalink] New post   24 Dec 2014, 05:55
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In 1955, the ratio of the number of televisions to the number of people was approximately
A. 1 to 13
B. 1 to 23
C. 1 to 26
D. 1 to 50
E. 1 to 90

From 1940 to 1955, the percent increase in the number of televisions was closest to
A. 30
B. 130
C. 350
D. 450
E. 600

What was the approximate population of Town X in 1945?
A. 150
B. 750
C. 1500
D. 3000
E. 4500

Show: :: Answer
A,C,B
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GreenlightTestPrep
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Re: DI Set #5-number of televisions to the number [#permalink] New post   Updated on: 21 Apr 2015, 17:30
2
soumya1989 wrote:
Image

In 1955, the ratio of the number of televisions to the number of people was approximately
A. 1 to 13
B. 1 to 23
C. 1 to 26
D. 1 to 50
E. 1 to 90

From 1940 to 1955, the percent increase in the number of televisions was closest to
A. 30
B. 130
C. 350
D. 450
E. 600

What was the approximate population of Town X in 1945?
A. 150
B. 750
C. 1500
D. 3000
E. 4500

Show: :: Answer
A,C,B


In 1955, the ratio of the number of televisions to the number of people was approximately
A. 1 to 13
B. 1 to 23
C. 1 to 26
D. 1 to 50
E. 1 to 90

If we examine what's happening in 1955 with regard to population per television...
Image
...we see that there are approximately 13 people per 1 TV.

So, the ratio is 1 to 13

Answer:
Show: ::
A


Cheers,
Brent
Attachments

tvs1.png
tvs1.png [ 15.49 KiB | Viewed 15824 times ]


Originally posted by GreenlightTestPrep on 21 Apr 2015, 17:19.
Last edited by GreenlightTestPrep on 21 Apr 2015, 17:30, edited 1 time in total.
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GreenlightTestPrep
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Re: DI Set #5-number of televisions to the number [#permalink] New post   Updated on: 21 Apr 2015, 17:31
1
soumya1989 wrote:
From 1940 to 1955, the percent increase in the number of televisions was closest to
A. 30
B. 130
C. 350
D. 450
E. 600



Let's check the number of televisions line for each year....
Image
In 1940, there were about 20 televisions, and in 1955, there were about 90 televisions.

Percent increase = 100(new - old)/old
= 100(90 - 20)/20
= 100(70)/20
= 100(3.5)
= 350
=
Show: ::
C


Cheers,
Brent
Attachments

tvs2.png
tvs2.png [ 15.72 KiB | Viewed 15776 times ]


Originally posted by GreenlightTestPrep on 21 Apr 2015, 17:25.
Last edited by GreenlightTestPrep on 21 Apr 2015, 17:31, edited 1 time in total.
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GreenlightTestPrep
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Re: DI Set #5-number of televisions to the number [#permalink] New post   21 Apr 2015, 17:29
soumya1989 wrote:

What was the approximate population of Town X in 1945?
A. 150
B. 750
C. 1500
D. 3000
E. 4500



When we check what was happening in 1945...
Image
we see that there were about 30 televisions.
We also see that there were about 25 people per television.
So, the total number of people =(30)(25)
= 750
Answer:
Show: ::
B


Cheers,
Brent
Attachments

tvs3.png
tvs3.png [ 20.63 KiB | Viewed 15783 times ]

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Re: DI Set #5-number of televisions to the number [#permalink] New post   11 Dec 2018, 14:03
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#GREpracticequestion From 1940 to 1955, the percent increase in the number of televisions was closest to .jpg
#GREpracticequestion From 1940 to 1955, the percent increase in the number of televisions was closest to .jpg [ 55.58 KiB | Viewed 7408 times ]


From 1940 to 1955, the percent increase in the number of televisions was closest to

A. 30

B. 130

C. 350

D. 450

E. 650
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nishthajain1611
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Re: DI Set #5-number of televisions to the number [#permalink] New post   21 Dec 2018, 10:08
the trap here is the word "percent increase"
do not start finding the actual number
just the increase from 20
ie the difference between 90 and 20 which is 70
which is 350% of 20
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gulsam
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Re: DI Set #5-number of televisions to the number [#permalink] New post   23 Dec 2019, 06:55
GreenlightTestPrep wrote:
soumya1989 wrote:
Image

In 1955, the ratio of the number of televisions to the number of people was approximately
A. 1 to 13
B. 1 to 23
C. 1 to 26
D. 1 to 50
E. 1 to 90

From 1940 to 1955, the percent increase in the number of televisions was closest to
A. 30
B. 130
C. 350
D. 450
E. 600

What was the approximate population of Town X in 1945?
A. 150
B. 750
C. 1500
D. 3000
E. 4500

Show: :: Answer
A,C,B


In 1955, the ratio of the number of televisions to the number of people was approximately
A. 1 to 13
B. 1 to 23
C. 1 to 26
D. 1 to 50
E. 1 to 90

If we examine what's happening in 1955 with regard to population per television...
Image
...we see that there are approximately 13 people per 1 TV.

So, the ratio is 1 to 13

Answer:
Show: ::
A


Cheers,
Brent


Why are there 2 equal images?
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gulsam
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Re: DI Set #5-number of televisions to the number [#permalink] New post   23 Dec 2019, 06:56
Quote:
From 1940 to 1955, the percent increase in the number of televisions was closest to
A. 30
B. 130
C. 350
D. 450
E. 600


Can you, please, explain the second task? I had 300%. How can it be 350%?
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Re: DI Set #5-number of televisions to the number [#permalink] New post   23 Dec 2019, 10:39
Expert Reply
In 1940 is 20

In 1955 is 90

\(\frac{90-20}{20}=3.5\)

C is the answer
Prep Club for GRE Bot
gmatclubot
Re: DI Set #5-number of televisions to the number [#permalink]
23 Dec 2019, 10:39
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