胜利大街上从头到尾原有路灯201盏,相邻两盏路灯相距50米;现在换新路灯又增加了50盏,相邻两盏路灯的距离是多少米?
人气:436 ℃ 时间:2020-01-26 07:57:45
解答
(201-1)×50÷(201+50-1)
=200×50÷250
=40(米)
答:相邻的两盏路灯的距离是40米.
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