sat og

题目

sat og
on a square gameboard that is diveded into n rows of n squares each.k of these squares lie along the boudary of the gameboard.which of the following is a possible value for
A 10
B 25
C 34
D 42
E 52
我看不懂题、sat og上的
我哭了，我找到网上的翻译了，不用回答了
依题列k可能取值为4 9 12
由此推出 公式 （n-1）*4
之后带入答案

答案

谢谢