论文部分内容阅读
试题 甲乙两人骑自行车分别从某公路上相距6千米的A,B两地同时前进,甲在乙后面。如果他们同时出发,那么甲经过3小时可追上乙;如果甲比乙晚1小时出发,那么甲经过8小时才能追上乙。求甲骑车的速度。 解法分析 行程问题一般有相向而行的相遇问题,同向而行的追及问题,航行问题等类型。本题是同向追及问题,为了弄清题意,画出示意图。
Question A and B both ride bicycles and move from A and B, which are 6 km apart, on one road at the same time. A is behind B. If they start at the same time, then A can catch up with B after 3 hours; if A starts with 1 hour later than B, then A can catch up with B after 8 hours. Ask for the speed of a ride. Analysis of the solution The problem of the trip generally has the problems of encountering each other, the problem of following the same direction, and the problem of navigation. This question is to follow the same problem, in order to clarify the meaning of the problem, draw a schematic diagram.