A car drives from place A to place B, which is 300 kilometers away. After driving for 6 hours, it is still 48 kilometers away from place B. How many miles per hour does the car travel on average? (solution with equation)
一辆汽车从甲地驶往距离300千米的乙地，行了6小时后还距离乙地48千米．这辆汽车平均每小时行多少千米？(用方程解答)
<gadget id="calculator">300 - 48</gadget>
<output>252</output>

<gadget id="calculator">252 / 6</gadget>
<output>42</output>

<result>42</result>