The elder sister goes to school from home and walks 50 meters per minute, and the younger sister walks 45 meters per minute when returning home from school. If the younger sister leaves 5 minutes earlier than the elder sister, then the two sisters arrive at the destination at the same time. How far is it from home to school?
姐姐从家上学，每分钟走50米，妹妹从学校回家，每分钟走45米．如果妹妹比姐姐早动身5分钟，那么姐妹两人同时到达目的地．问家到学校有多远？
<gadget id="calculator">50 - 45</gadget>
<output>5</output>

<gadget id="calculator">5 / 5</gadget>
<output>1</output>

<gadget id="calculator">50 * 45 * 1</gadget>
<output>2_250</output>

<result>2_250</result>