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In Patton City, days are categorized as having heavy

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Re: In Patton City, days are categorized as having heavy [#permalink]

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New post 18 Sep 2016, 15:11
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A
B
C
D
E

Difficulty:

  95% (hard)

Question Stats:

35% (01:10) correct 65% (02:04) wrong based on 1778 sessions

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Thanks Karishma for the detailed explanation.
I was struggling with this for quite some time :)

Regards,
Abhishek Sinha
VeritasPrepKarishma wrote:
raghavs wrote:
In Patton City, days are categorized as having heavy rainfall (more than two inches), moderate rainfall (more than one inch, but no more than two inches), light rainfall (at least a trace, but no more than one inch), or no rainfall. In 1990, there were fewer days with light rainfall than in 1910 and fewer with moderate rainfall, yet total rainfall for the year was 20 percent higher in 1990 than in 1910.

If the statements above are true, then it is also possible that in Patton City
A. the number of days with heavy rainfall was lower in 1990 than in 1910
B. the number of days with some rainfall, but no more than two inches, was the same in 1990 as in 1910
C. the number of days with some rainfall, but no more than two inches, was higher in 1990 than in 1910
D. the total number of inches of rain that fell on days with moderate rainfall in 1990 was more than twice what it had been in 1910
E. the average amount of rainfall per month was lower in 1990 than in 1910


The question is asking for an option that is possible but not necessarily true.
Stimulus tells us:
HR > 2
MR 1 to 2
LR 0 to 1
No Rain 0

LR Days (1990) < LR Days (1910)
MR Days (1990) < MR Days (1910)
Yet, Total rainfall 1990 > Total rainfall 1910

A. the number of days with heavy rainfall was lower in 1990 than in 1910
This is possible. Even if HR Days (1990) < HR Days (1910), still 1990 could have had higher total rainfall. Think if in 1990, HR days were fewer, but on each one of those days, it rained 50 inches whereas in 1910, HR Days were more but on each one of those days, it rained only 3 inches, then total rainfall in 1990 could be higher than that of 1910. This is the answer.

B. the number of days with some rainfall, but no more than two inches, was the same in 1990 as in 1910.
Not possible because it is given that
LR Days (1990) < LR Days (1910)
MR Days (1990) < MR Days (1910)
So LR Days (1990) + MR Days (1990) < LR Days (1910) + MR Days (1910)

C. the number of days with some rainfall, but no more than two inches, was higher in 1990 than in 1910
Not possible because of the reason given in (B).

D. the total number of inches of rain that fell on days with moderate rainfall in 1990 was more than twice what it had been in 1910
Not Possible. On a moderate rainfall day, amount of rainfall is more than 1 but less than 2. If number of MR days in 1990 is less than the number of MR days in 1910, no amount of rain can make the total rainfall more than twice.

E. the average amount of rainfall per month was lower in 1990 than in 1910
Not Possible.
Total rain (1990) > Total rain (1910)
Average rain per month = (Total rain)/12
Total rain (1990)/12 > Total rain (1910)/12
[Reveal] Spoiler: OA

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Re: In Patton City, days are categorized as having heavy [#permalink]

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New post 12 Nov 2016, 00:02
Figuring out this sentence is the key "In 1990, there were fewer days with light rainfall than in 1910 and fewer with moderate rainfall, yet total rainfall for the year was 20 percent higher in 1990 than in 1910".

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Re: In Patton City, days are categorized as having heavy [#permalink]

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New post 20 Feb 2017, 07:39
Please explain the answer to this. I didn't understand.

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Re: In Patton City, days are categorized as having heavy [#permalink]

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banerjeeankush99 wrote:
Please explain the answer to this. I didn't understand.


Check out our post on this:
https://www.veritasprep.com/blog/2013/0 ... -the-gmat/
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In Patton City, days are categorized as having heavy [#permalink]

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In Patton City, days are categorized as having heavy rainfall (more than two inches), moderate rainfall (more than
one inch, but no more than two inches), light rainfall (at least a trace, but no more than one inch), or no rainfall.
In 1990, there were fewer days with light rainfall than in 1910 and fewer with moderate rainfall, yet total rainfall
for the year was 20 percent higher in 1990 than in 1910. If the statements above are true, then it is also
possible that in Patton City
The main point-
(number of rainy days in 1910 > number of rainy days in 1900)
doesn't mean
(rainfall in 1910 > rainfall in 1900)
pretty obvious as the amount of rain in a rainy day coupled with number of rainy days will determine that.

A. the number of days with heavy rainfall was lower in 1990 than in 1910
There is possibility.

B. the number of days with some rainfall, but no more than two inches, was the same in 1990 as in 1910
False. it is greater in 1910 than in 1900.
C. the number of days with some rainfall, but no more than two inches, was higher in 1990 than in 1910
False. it is greater in 1910 than in 1900.
D. the total number of inches of rain that fell on days with moderate rainfall in 1990 was more than twice what it
had been in 1910
1 inch < moderate (1910) < 2 inches
1 inch < moderate (1900) < 2 inches
moderate (1900) > 2 *moderate (1910)
Impossible. simple arithmetic.



E. the average amount of rainfall per month was lower in 1990 than in 1910

the rainfall in 1900 is 20% higher than in 1910.
So the average amount in 1900 has to be higher than in 1910.
Wrong.


A is the most suitable one. Correct.
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Re: In Patton City, days are categorized as having heavy [#permalink]

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I chose A basically because after looking through all options, only A and D seemed viable. And D was completely wrong as 'moderate rain' is limited to 1-2 inches of water. Thus, option A seemed right.

Also this raised my eyebrow from the very first moment as it could very well be that there was heavier rains in 1910 but also a lot more days free of rain. This is something most people would not assume, so I assumed the GMAT would be looking to exploit the most common assumptions

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Re: In Patton City, days are categorized as having heavy [#permalink]

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New post 03 Jul 2017, 11:34
all B,C,D,E are wrong and contrary to the passage.
Only A is left.

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Re: In Patton City, days are categorized as having heavy [#permalink]

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New post 21 Jul 2017, 06:16
VeritasPrepKarishma wrote:
banerjeeankush99 wrote:
Please explain the answer to this. I didn't understand.


Check out our post on this:
https://www.veritasprep.com/blog/2013/0 ... -the-gmat/


Although I could do this one right, it took me a long time provided each condition had to be checked. Is something of this sort to be expected on the GMAT?
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Re: In Patton City, days are categorized as having heavy   [#permalink] 21 Jul 2017, 06:16
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