40米走廊挂镜框,50厘米8个,80厘米6个,两头与镜框,镜框与镜框等距,问间距多少厘米?

分类: 作业答案 • 2022-01-09 18:03:27

问题描述：

答

共有 8 + 6 +1 = 15个间距
间距和 = 40 - 0.5*8 - 0.8*6 = 40 - 4 - 4.8 = 31.2
每个间距=31.2/15 = 2.08 (米) = 208 厘米