The distance between A and B is 120 meters. A walks 35 meters per minute, and B walks 25 meters per minute. A and B start from A and B opposite each other and walk back and forth. When they meet for the second time, they walk away. how many minutes?
A、B两地相距120米，甲每分钟走35米，乙每分钟走25米，甲、乙两人从A、B两地相向出发，往返而行，第二次相遇时两人走了多少分钟？
<gadget id="calculator">35 + 25</gadget>
<output>60</output>

<gadget id="calculator">3 / 60</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">120 * (1/20)</gadget>
<output>6</output>

<result>6</result>