Xiaohong and Xiaoming start to go up the stairs at the same time. It takes Xiaohong 300 seconds to reach the 6th floor, and Xiaoming takes 240 seconds to reach the 7th floor. According to this speed, when Xiaohong reaches the 7th floor, which floor is Xiaoming on? how many floors
小红和小明同时开始上楼梯，小红到达6楼用了300秒，小明到达7楼用了240秒，照这样的速度，小红到达7楼时，小明在几楼？多少楼
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">300 / 5</gadget>
<output>60</output>

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">60 * 6</gadget>
<output>360</output>

<gadget id="calculator">240 / 6</gadget>
<output>40</output>

<gadget id="calculator">360 / 40</gadget>
<output>9</output>

<gadget id="calculator">9 + 1</gadget>
<output>10</output>

<result>10</result>