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In Patton City, days are categorized as having heavy

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In Patton City, days are categorized as having heavy [#permalink] New post 14 Dec 2008, 04:11
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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
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

stumped!!!
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Re: CR- Tricky [#permalink] New post 22 Dec 2008, 13:23
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Answer has to be A:

here is an example of the Moderate rainfall which counts as something:

Moderate in 1910 can equal 1.0001 inches/day
Moderate in 1990 can equal 1.9999 inches/day

Accounting for the heavy rainfall, there could be a 3 inch difference between 1990 and 1910 basically making the Heavy rainfall days unimpactful.

The light rainfall for 1990 can equal .9999
The light rainfall for 1910 can equal .0001

With these examples you could easily get a 20% difference
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Re: CR- Tricky [#permalink] New post 14 Dec 2008, 05:40
vivektripathi 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

stumped!!!

Firstly, there will be no way to be true for the choices B, C, and D accoring to the question statement. E is not right either.
So, only A is left. A could be a possible answer if we consider the amount of heavy rainfall is much higher (because there is no upper limit in the amount of rainfall) than the rainfall in 1910.
I go for A.
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Re: CR- Tricky [#permalink] New post 14 Dec 2008, 12:03
vivektripathi 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

stumped!!!


I choose D cuz here something has to be shown that supports "20 percent higher aggregate rain in 1990 than in 1910". On the moderate days, the rain might have fall for more inches and for longer hours in 1990 than the same in 1910.


I see point in A as it could be possible but doesnot support the "20 percent higher in 1990 than in 1910".
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Re: CR- Tricky [#permalink] New post 14 Dec 2008, 21:21
Confused b/w C and D.
A in fact weakens the argument
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Re: CR- Tricky [#permalink] New post 16 Dec 2008, 06:57
IMO D.
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Re: CR- Tricky [#permalink] New post 17 Dec 2008, 14:08
ugimba wrote:
IMO D.


moderate is defined as more than 1 but less than 2, so you couldn't double a moderate amount and still be called moderate.

has to be A, with less days of no rain
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Re: CR- Tricky [#permalink] New post 18 Dec 2008, 00:29
A.
B-out. contradicts the premise "In 1990, there were fewer days with light rainfall than in 1910 and fewer with moderate rainfall" - must be FEWER.

C-out. for the same reason as for B.

D-out. Moderate is (1-2 inches). in 1990 days with moderate rain were fewer than that in 1990. Then how rainfall (moderate) could be MORE THAN TWICE than that in 1910- it is not possible. With fewer days of moderate rain D can be right only if in each day rainfall is more than 2 inches, which is not Moderate anymore.

ex: # of moderate days(1990) = 4, everyday it rains x inches: x must belong to (1-2)
# of moderate days(1910)=5; it rains, let's even assume, 1 inch (minimum, although it can be up to 2 inches)
D says 4x>2*5 or 4x>10 then x>2.5 inches which is not Moderate anymore.

E-out. It contradicts last premise.

Actually u could have put this question in Math forum, too!
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Re: CR- Tricky [#permalink] New post 18 Dec 2008, 02:11
even I feel A weakens the argument , I am confused b/w C & D
However my answer is D
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Re: CR- Tricky [#permalink] New post 18 Dec 2008, 08:29
vivektripathi 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

stumped!!!


A is the only possible choice because it says more than two inches

so it is possible that even tho the number of days of heavy rainfall in 1990 was lower, maybe there were two days with 1000000 inches of rain so on average that extreme made up for the difference
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Re: CR- Tricky [#permalink] New post 18 Dec 2008, 21:34
i think this is inference type Q in which we have to only rely on the information given in the argument and with this information only we have to choose the correct ans, no out side information to be used. for A to be correct we have to assume that eventhough there is less no. of days with high rain these days are with extremly high rain fall. so it is out also B,C and E are out. only ans that can be inferred from the given statement is the D.
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Re: CR- Tricky [#permalink] New post 22 Dec 2008, 09:52
OA is "A" thats the only option which is possible witj given facts. I think i deserve +1 for posting this question.
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Re: CR- Tricky [#permalink] New post 22 Dec 2008, 11:17
Vivek,

Can you post the OE also please?

Thanks.
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Re: CR- Tricky [#permalink] New post 30 Dec 2008, 06:25
IMO A
Re: CR- Tricky   [#permalink] 30 Dec 2008, 06:25
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