sat数学题
The sum of four consecutive odd integers w,x,y,and z is 24.What is the median of the set{ w,x,y,z,24}?
人气:277 ℃ 时间:2020-05-17 02:19:27
解答
题目是在问:4个连续奇数w,x,y,z的和是24 ,这一组数{ w,x,y,z,24}的中位数是多少?
median是中位数的意思 当然 y就是这组数中的中位数啦
4个奇数很好求 w+(w+2)+(w+4)+(w+6)=24 得w=3 y=w+4=7
所以 答案是7
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