A bus travels 170 kilometers in the first 2 hours and an average of 100 kilometers per hour in the next 3 hours. How many kilometers per hour does the bus travel on average?
一辆大客车在前2小时行驶了170千米，后3小时平均每小时行驶了100千米，这辆大客车平均每小时行驶多少千米？
<gadget id="calculator">100 * 3</gadget>
<output>300</output>

<gadget id="calculator">170 + 300</gadget>
<output>470</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">470 / 5</gadget>
<output>94</output>

<result>94</result>