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In Patton City, days are categorized as having heavy [#permalink]
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16 Oct 2006, 21:40
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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



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The only one that fits the bill is (A).
(B)no. of days was fewer
(C)same as (B)
(D)Taking a few values will never be true.
(E)But the total is higher in 1990.
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Last edited by sangarelli on 16 Oct 2006, 23:13, edited 1 time in total.



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The only one that fits the bill is (A).
(B)no. of days was fewer
(C)same as (B)
(D) can never be true
(E)But the total is higher in 1990.
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A wellbalanced person is one who has a drink in each of his hands.



Director
Joined: 18 Jul 2006
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I got D.



Senior Manager
Joined: 19 Jul 2006
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Only choice A is possible



VP
Joined: 21 Aug 2006
Posts: 1016

My bet is on D.
A seems wrong to me.
When the number of days in 1990 with light rain fall is small, moderate rain fall is small, and heavy rain fall is small... going by probability there will be less rain in 1990 than in 1910. But the total rainfall is higher in 1990 according to argument. A can be true if we assume that rain per day on rainy day in 1990 was high. But that way even D can be right.
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Location: New York

I am also getting D. What is the OA/OE please
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Re: CR  Rainfall [#permalink]
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17 Oct 2006, 07:13
KC 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
Tricky . . .
Answer has to be A
Here is the possible scenario
1910 # of days
light 2 (total rainfall .2")
moderate 2 (total rainfall 3")
heavy 2 (total rainfall 6")
9.2"
1990 # of days
light 1(total rainfall .1")
moderate 1(total rainfall 1.5")
heavy 1(total rainfall 9.44" inches)
11.04"



Senior Manager
Joined: 13 Sep 2006
Posts: 279
Location: New York

Thanks Kidderek  that makes perfect sense. How could I miss that
More days of heavy rainfall does not equate to overall inches being increased. You can have a 3 dyas of heavy rainfall in 1910 (5 inches a piece) and then one day of massive rainfall (say 50+inches) in 1990.
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Manager
Joined: 16 Oct 2006
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OA is A. =)
I don't have OE, but I think my questions are useful in studying GMAT for guys.
Good Luck !



Director
Joined: 17 Jul 2006
Posts: 706

I got A though I'm so late



Director
Joined: 23 Jun 2005
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Re: CR  Rainfall [#permalink]
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17 Oct 2006, 10:46
D
A. the number of days with heavy rainfall was lower in 1990 than in 1910
 if true, then there could not have been higher total rainfall in 1990.
B. the number of days with some rainfall, but no more than two inches, was the same in 1990 as in 1910
 clearly says fewer days with light and/or moderate rainfall in 1990
C. the number of days with some rainfall, but no more than two inches, was higher in 1990 than in 1910
same argument as for 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
 let's say moderate rainfall occurred on 361 days in 1910 (1.1 inches/day) and 360 days in 1990 (1.9 inches/day), then D is possible. It may seem absurd that it would rain an inch almost every day, but theoretically, D is the only possible option.
E. the average amount of rainfall per month was lower in 1990 than in 1910
since total rainfall was higher in 1990, average rainfall per month should also be higher.



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Re: CR  Rainfall [#permalink]
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17 Oct 2006, 10:49
anandsebastin wrote: D 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  let's say moderate rainfall occurred on 361 days in 1910 (1.1 inches/day) and 360 days in 1990 (1.9 inches/day), then D is possible. It may seem absurd that it would rain an inch almost every day, but theoretically, D is the only possible option.
Aaaaah! My incredible math skills
It should be A as people have explained.



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only D



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Location: Florida, Argentina, UK

Re: CR  Rainfall [#permalink]
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17 Oct 2006, 19:03
A it is. C and D are impossible, cause there are fewer days. In A, two days could have rained 3'' and one day in 1990 way more.



Manager
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Again, OA is definitely A



Intern
Joined: 31 Jul 2012
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Re: CR  Rainfall [#permalink]
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03 Aug 2012, 02:17
kidderek wrote: KC 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 Tricky . . . Answer has to be A Here is the possible scenario 1910 # of days light 2 (total rainfall .2") moderate 2 (total rainfall 3") heavy 2 (total rainfall 6") 9.2" 1990 # of days light 1(total rainfall .1") moderate 1(total rainfall 1.5") heavy 1(total rainfall 9.44" inches) 11.04" Your possibility can be wrong  In 1910: Heavy 2 (total rainfal can be 6 or 12 or what ever number) In 1990: heavy 1(total rainfall can 2.1 also) then is A correct?











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