甲乙两人分别从A,B两地相向而行甲乙速度比是7:9,相遇时甲比乙少行了240米,A,B两地相距多少米?

问题描述:

甲乙两人分别从A,B两地相向而行甲乙速度比是7:9,相遇时甲比乙少行了240米,A,B两地相距多少米?

240÷(9-7)x(9+7)
=120x16
=1920(米)