来自潘永辉的问题
少先队员在路的两旁每隔2米栽一棵树,起点和终点都栽,一共栽42棵,这条路长多少米?
少先队员在路的两旁每隔2米栽一棵树,起点和终点都栽,一共栽42棵,这条路长多少米?
1回答
2020-04-07 21:44
少先队员在路的两旁每隔2米栽一棵树,起点和终点都栽,一共栽42棵,这条路长多少米?
少先队员在路的两旁每隔2米栽一棵树,起点和终点都栽,一共栽42棵,这条路长多少米?
(42-1)*2=82(棵)