标题: 请高手指点,一道GWD数学题,读不懂--DS的--Is the integer n odd? [打印本页] 作者: dominique_cp 时间: 2010-2-2 10:21 标题: 请高手指点,一道GWD数学题,读不懂--DS的--Is the integer n odd? 题目:Dada Sufficiency
Is the integer n odd?
(1) n is divisible by 3
(2) 2n is divisible by twice as many positive integers as n