It is 188 kilometers from place A to place B. Xiao Ming leaves from place A by car at 9:15 and arrives at place B at 1:15 pm. How many kilometers per hour does the car travel on average?
甲地到乙地有188千米，小明乘9：15的汽车从甲地出发，下午1时15分到达乙地．汽车平均每小时行多少千米？
<gadget id="calculator">188 / 4</gadget>
<output>47</output>

<result>47</result>