Two people, A and B, set off from A and B at the same time and walk toward each other. A's speed is 80 meters per minute, and B's speed is 60 meters per minute. After the two meet, they continue to move forward. A arrives at B and B After arriving at A, immediately return along the original road. It is known that the place where the two met for the second time is 40 meters away from the place where they met for the first time, how many meters are the distance between A and B?
甲、乙二人分别从A、B两地同时出发，相向而行，甲的速度是每分钟80米，乙的速度是每分钟60米，二人相遇后继续前进，甲到达B地和乙到达A地后都立即沿原路返回．已知二人第二次相遇的地点距第一次相遇地点40米，则A、B两地相距多少米？
<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">(4/7) * 2</gadget>
<output>8/7 = around 1.142857</output>

<gadget id="calculator">(8/7) - 1</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">(4/7) - (1/7)</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">40 / (3/7)</gadget>
<output>280/3 = around 93.333333</output>

<result>280/3 = around 93.333333</result>