A car travels from place A to place B. It travels 45 kilometers per hour in the first 4 hours, and travels 5 kilometers more per hour for the rest of the journey. It takes another 5 hours to reach the destination. How long is the road between places A and B? km?
一辆汽车从甲地到乙地，前4小时每小时行45千米，余下的路程每小时比原来多行5千米，这样又行了5小时才到达，求甲乙两地的公路长多少千米？
<gadget id="calculator">4 * 45</gadget>
<output>180</output>

<gadget id="calculator">45 + 5</gadget>
<output>50</output>

<gadget id="calculator">50 * 5</gadget>
<output>250</output>

<gadget id="calculator">180 + 250</gadget>
<output>430</output>

<result>430</result>