small road is 250 meters long. Xiao Jun and Dad start from the starting point of the small road at the same time at a uniform speed. When Xiao Jun walks to (1/3) of the small road. Dad has reached the end of the trail, and then Dad returns and walks towards Xiaojun. After meeting Xiaojun, he goes to the end, and after reaching the end, he walks towards Xiaojun... until Xiaojun reaches the end, Dad starts from the start, a total of How many meters did you walk?
一条小路长250米，小军和爸爸分别以均匀的速度同时从小路的起点出发，当小军走到小路的(1/3)时．爸爸已到达小路的终点，然后爸爸返回与小军相向而行，遇到小军以后再走向终点，到达终点以后再与小军相向而行…，直到小军到达终点，爸爸从出发开始，一共走了多少米？
<gadget id="calculator">250 * 3</gadget>
<output>750</output>

<result>750</result>