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题库 / GMATLA-CR-106
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 number of days with heavy rainfall was lower in 1990 than in 1910.
the number of days with some rainfall, but no more than two inches, was the same in 1990 as in 1910.
the number of days with some rainfall, but no more than two inches, was higher in 1990 than in 1910.
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.
the average amount of rainfall per month was lower in 1990 than in 1910.
找到一个解释：it is possible that there were 20 days in 1910 with over 2 inches of rainfall, but 15 days in 1990 with much more rainfall each per day. There is no upper limit, so picking numbers should unlock this concept nicely: if 1910 had 20 days at 2.5 inches/day, and 1990 had 15 days at 5 inches/day, then more rain would still fall in 1990 (75 inches vs 50 inches, just like my recent television purchase debate) even though there were fewer days . This may seem improbable, but it is not impossible.
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