and B are walking back and forth between A and B. A starts from A and B starts from B at the same time; the first meeting point is 60 meters away from B. When B returned from A, he walked 10 meters and met A for the second time. What is the distance between A and B?
甲乙两人在A、B两地间往返散步，甲从A、乙从B同时出发；第一次相遇点距B处60米．当乙从A处返回时走了10米第二次与甲相遇．A、B相距多少米？
<gadget id="calculator">60 * 3</gadget>
<output>180</output>

<gadget id="calculator">180 - 10</gadget>
<output>170</output>

<result>170</result>