Xiaoxiao's home is about 2160 meters away from the school, and Xiaoxiao rides an average of 180 meters per minute. How many minutes does it take for Xiaoxiao to go from home to school? One day, Xiao Xiao left home at 7:51 and arrived at school at exactly 8:00. How many meters per minute does Xiaoxiao ride to school on average?
小小家离学校大约2160米，小小骑车平均每分约骑180米．小小从家去学校大约需要几分？一天，小小7时51分从家出发，刚好8时到校．小小这天上学平均每分骑多少米？
<gadget id="calculator">2_160 / 9</gadget>
<output>240</output>

<result>240</result>