sat一道数学题On a square gameboard that is divided into n row of n squares each,k of these squares lie along the boundary of the gameboard.Which of the following is a possible value for A.10 B.25 C.34 D.43 E.52不明白题目在说什么哟……………………
问题描述:
sat一道数学题
On a square gameboard that is divided into n row of n squares each,k of these squares lie along the boundary of the gameboard.Which of the following is a possible value for
A.10 B.25 C.34 D.43 E.52
不明白题目在说什么哟……………………
答
正方形分成n行n列,也就是n平方份,k是依赖于n的格子数,问k有可能是哪个,只有B25是平方数,选B
答
一个正方形游戏板被分成n列每列n个小正方形,这些正方形中的k个于正方形游戏板的边相接触。 下面那个是k的最可能的值、
选平方数就OKAY啦 B
答
题目
一个正方形的棋盘上分成了相等的n*n的小正方形,有k个这样的小正方形是在大棋盘的外沿上,那么问k的可能取值.
简单计算得知k=4(n-1)
将所有选项作为k值代入上式,得出n为整数者为答案.
答案选E