monicars 当前离线
中级会员
<--StartFragment --> The average of the 5 positive integers k,m,r,s
and t is 16, and k<m<r<s<t. If t is 40, what is the greater
possible value of the median of the 5 integers?6
thanks a lot !!!
TOP
himba 当前离线
版主
K+m+r+s+t = 16*5 = 80. the median is r, and r = 80-t-s-k-m = 40 - s-k-m〈= 40 - 1-2-(r+1), so we can get r<=18.
note: k>=1, m>=2, s>=r+1.
自2003年开始提供 MBA 申请服务以来,保持着90% 以上的成功率,其中Top10 MBA服务成功率更是高达95%