In an auditorium, 360 chairs are to be set up in a rectangular arrangement with x rows c exactly y chairs each. If the only other restriction is that 10 < x < 25, how many different rectangular arrangements are possible?
Four
Five
Six
Eight
Nine
登录 或 注册 后可以参加讨论
感觉列出11-24然后把不含因子的一个个划掉比较快
感觉列出11-24然后把不含因子的一个个划掉比较快
登录 或 注册 后可以参加讨论