A car travels from place A to place B. It travels 102 kilometers in the first 2 hours, and travels 48 kilometers in the third hour. It just arrives at place B. On average, how many kilometers per hour does the car travel from A to B?
一辆汽车从甲地到乙地，前2小时行了102千米，第3小时行了48千米，正好到达乙地．这辆汽车从甲地到乙地平均每小时行多少千米？
<gadget id="calculator">102 + 48</gadget>
<output>150</output>

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">150 / 3</gadget>
<output>50</output>

<result>50</result>