GWD-29-Q35

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)

1. the number
        of days with heavy rainfall was lower in 1990 than in 1910
2. the number
        of days with some rainfall, but no more than two inches, was the same in
        1990 as in 1910
3. the number
        of days with some rainfall, but no more than two inches, was higher in
        1990 than in 1910
4. 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
5. the
        average amount of rainfall per month was lower in 1990 than in 1910

当然啦。其它的都给出了雨量的范围，有限制，只有heavy是大于一个数就行，所以全靠它往上拉总雨量了。

（1990与 1910的下雨总量是由
            ===== days * 每天下雨量）
        决定的，现在题目中只知道下雨天数，具体的每天到底下多少都未知。所以A是有可能的，例如，在1990年下了1天大雨，那天正好下了1000inches，而在1910下了10天大雨，每天只下3inches，总量还是1990年大