请高手翻译两道gmat数学题并求解1、 in city x last April, was the average(arithmetic mean) daily high temperature greater than the median daily high temperature?(1) in city x last April, the sum of the 30 daily high temperature was 2,160
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请高手翻译两道gmat数学题并求解1、 in city x last April, was the average(arithmetic mean) daily high temperature greater than the median daily high temperature?(1) in city x last April, the sum of the 30 daily high temperature was 2,160
请高手翻译两道gmat数学题并求解
1、 in city x last April, was the average(arithmetic mean) daily high temperature greater than the median daily high temperature?
(1) in city x last April, the sum of the 30 daily high temperature was 2,160°
(2) in city x last April, 60% of the daily high temperature were less than the average daily high temperature.
2、 if s and t are positive intergers such that s/t=64.12, which of the following could be the remainder when s is divided by t?
(a) 2
(b) 4
(c) 8
(d) 20
(e) 45
请高手翻译两道gmat数学题并求解1、 in city x last April, was the average(arithmetic mean) daily high temperature greater than the median daily high temperature?(1) in city x last April, the sum of the 30 daily high temperature was 2,160
去年4月,在x城市,整个月的每天的最高气温的算数平均值 是否比 其月每天最高气温的 中间值 要高?
1.知道每天平均气温的总和为2160
2.在4月份,60%的日最高气温都比 这个月的最高气温的算术平均值低
把每天的最高气温,看成1个有30个数的数列.问：是否这个数列的算是平均值大于其中值.
1.知道总和-------明显数据不足
2.知道60%的项,即30项里的18项,都低于平均值M
按从小到大排列,中值=(第15项+第16项)/2 前18项都小于M的,所以中值肯定小于M.
所以条件2充分；选B
题目2：
如果s和t是正整数,且:s/t=64.12
问,下面哪1个有可能是s除以t的余数.
s=64.12t=64t+0.12t 所以s/t的余数=0.12t
余数=0.12t
t=余数/0.12
t是正整数,所以选择e:45