Kobayashi’s home is 364 meters away from school. Kobayashi rode from home to school for 4 minutes, and the distance to school is 64 meters. What is the average speed of the bicycle per minute?
小林家离学校有364米，小林从家骑车去学校，行驶了4分钟，距离学校还有64米，则自行车平均每分钟行驶多少米．
<gadget id="calculator">364 - 64</gadget>
<output>300</output>

<gadget id="calculator">300 / 4</gadget>
<output>75</output>

<result>75</result>