Xiao Ming's house, school and Xiao Hong's house are on the same straight line, and the distance from Xiao Ming's house to Xiao Hong's house is 560m. Xiao Ming and Xiao Hong set off from home at the same time and went to school facing each other, and arrived at the school gate at the same time 7 minutes later. Xiao Ming walks 45 meters per minute on average, how many meters per minute does Xiao Hong walk on average?
小明家、学校和小红家在同一条直线上，小明家到小红家的路程有560m．小明和小红同时从家出发相向而行去上学，7分钟后同时到达学校门口．小明平均每分钟走45m，小红平均每分钟走多少米？
<gadget id="calculator">45 * 7</gadget>
<output>315</output>

<gadget id="calculator">560 - 315</gadget>
<output>245</output>

<gadget id="calculator">245 / 7</gadget>
<output>35</output>

<result>35</result>