and B are walking towards each other from A and B. The speed ratio is 7:4. After meeting for the first time, they continue to move forward and return immediately when they reach the destination. They meet for the second time on the way, and the second meeting is 10 meters away from A How far is the distance between the two places?
甲乙两人从A、B两地相向而行，速度比是7：4，第一次相遇后继续前进，到达终点立即返回，在途中第二次相遇，第二次相遇离A地10米，两地相距多少？
<gadget id="calculator">7 + 4</gadget>
<output>11</output>

<gadget id="calculator">7 / 11</gadget>
<output>7/11 = around 0.636364</output>

<gadget id="calculator">(7/11) * 3</gadget>
<output>21/11 = around 1.909091</output>

<gadget id="calculator">2 - (21/11)</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">10 / (1/11)</gadget>
<output>110</output>

<result>110</result>