The total length of the road between A and B is 441 kilometers. A bus has been driving from A to B for 3 hours, at a rate of 75 kilometers per hour. If the remaining distance is to be covered within 2 hours, How many miles per hour on average?
甲乙两地之间公路全长441千米，一辆大客车从甲地开往乙地，已行了3小时，每小时行75千米，如果要在2小时内行驶完剩下的路程，平均每小时要行多少千米？
<gadget id="calculator">3 * 75</gadget>
<output>225</output>

<gadget id="calculator">441 - 225</gadget>
<output>216</output>

<gadget id="calculator">216 / 2</gadget>
<output>108</output>

<result>108</result>