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If in 2014, the population of Los Angeles was 75 percent gre

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If in 2014, the population of Los Angeles was 75 percent gre [#permalink] New post   13 Aug 2020, 02:56
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If in 2014, the population of Los Angeles was 75 percent greater than the population of Houston, what is the ratio of the incidence of pneumonia- and influenza-related deaths (expressed as a percent of the city’s population) in Houston to the incidence in Los Angeles in that year?

A. 1/2

B. 7/8

C. 15/16

D. 8/7

E. 4/3


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Sakiib
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Re: If in 2014, the population of Los Angeles was 75 percent gre [#permalink] New post   03 Sep 2020, 04:00
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As los angels have 2times more deaths than Houston in Pneumonia and influ.

assume houston have 100 people, act qsn los angels must have 175 people. if Houston have 50 deaths, act 2nd graph Los angels must have 100 deaths.

so, houston death %=50/100 and Los angels=100/175

now, 50/100 : 100/175= 7/8

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Aaka
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Re: If in 2014, the population of Los Angeles was 75 percent gre [#permalink] New post   04 Sep 2020, 22:39
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Houston population : P
Los Angeles population : p *(175/100) = p*(7/4)
Ratio of %: Houston: LA = 19:38 = 1 : 2

Rate of incidence Houston: 1/p
Rate of incidence LA: 2/(7/4)*p

Final ratio: (1/p) * (7p/8) = 7/8
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Re: If in 2014, the population of Los Angeles was 75 percent gre [#permalink] New post   09 Sep 2020, 06:24
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Sakiib wrote:
As los angels have 2times more deaths than Houston in Pneumonia and influ.

assume houston have 100 people, act qsn los angels must have 175 people. if Houston have 50 deaths, act 2nd graph Los angels must have 100 deaths.

so, houston death %=50/100 and Los angels=100/175

now, 50/100 : 100/175= 7/8

#SakibAtiq
#Kudos plz


Hi Sakib,

I want to know how did you assume the number of deaths in LA as 100?

deaths are 19% of population of Houston,i.e 19 people if you consider population as 100

deaths are 38% of "POPULATION OF LA" which would be 38% of 175.How can you just assume 100 directly from 50?percentage double from 19% to 38% is not the same for numbers.

You are considering 100 which is not correct.

As per question:ratio of deaths to ratio of total population should be then,

For Houston:

19% of 100

For LA:

38% of 175

end ratio:

19/100 divided by 38/175

=7/8

Your assumption of taking LA deaths straightaway as 100 is not correct
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Ezio23
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Re: If in 2014, the population of Los Angeles was 75 percent gre [#permalink] New post   09 Sep 2020, 09:33
I was able to arrive at the answer, but I've spent way too much time understanding the problem, and the question was also not straightforward. Any tips for improving speed in charts?
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Re: If in 2014, the population of Los Angeles was 75 percent gre [#permalink] New post   09 Sep 2020, 10:48
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Hi

these type of questions are good to reinforce your stamina.

Usually the OG questions have always a shortcut. so no worries. Just learn the process.

Particularly for this question I do not thing exist
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Re: If in 2014, the population of Los Angeles was 75 percent gre [#permalink] New post   10 Oct 2021, 08:05
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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