Xiao Li walks 50 meters per minute from home to school, half of the distance is covered in 7 minutes, and the remaining half of the distance is completed in 5 minutes. How many meters does he walk on average per minute?
小李从家到学校，每分钟走50米，7分钟走了一半路程，剩下的一半路程要5分钟走完，平均每分钟要走多少米．
<gadget id="calculator">7 / 5</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">50 * (7/5)</gadget>
<output>70</output>

<result>70</result>