Xiaowen walks 65 meters per minute, and Xiaoying walks 55 meters per minute. They walk towards each other and meet each other after x minutes. The total length of this section is 900 meters. How many minutes does x equal?
小文步行65米/分，小英步行55米/分，他们相对而行，x分钟后相遇，这段路一共有900米．求x等于多少分钟？
<gadget id="calculator">65 + 55</gadget>
<output>120</output>

<gadget id="calculator">900 / 120</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>