学校给一批新入校的同学分宿舍,若每个房间住7人,则6人没有床位,若每个房间住8人,则空出3个房间,新同学人数是() A.188B.194C.20...

作者: rantiku 人气: - 评论: 0
问题 学校给一批新入校的同学分宿舍,若每个房间住7人,则6人没有床位,若每个房间住8人,则空出3个房间,新同学人数是() A.188B.194C.206D.216
选项
答案 D
解析 设N个新同学,则根据题意(N-6)/7为整数,排除,B,C;N/8为整数,排除A,故答案为D

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