A, B, and C are walking at speeds of 30 meters, 40 meters, and 50 meters per minute, respectively. A and B are both at A, and C is at B. A, B and C are walking towards each other at the same time, and C meets A 10 minutes after meeting B, how many meters are the distance between AB and AB?
甲乙丙三人行走的速度分别为每分钟30米、40米和50米．甲乙同在A地，丙在B地．甲乙与丙同时相向而行，丙遇见乙后10分钟又和甲相遇，求AB两地相距多少米？
<gadget id="calculator">30 + 50</gadget>
<output>80</output>

<gadget id="calculator">50 * 10</gadget>
<output>500</output>

<gadget id="calculator">40 * 10</gadget>
<output>400</output>

<gadget id="calculator">500 + 400</gadget>
<output>900</output>

<gadget id="calculator">40 - 30</gadget>
<output>10</output>

<gadget id="calculator">900 / 10</gadget>
<output>90</output>

<gadget id="calculator">80 * 90</gadget>
<output>7_200</output>

<result>7_200</result>