A car travels from place A to place B. It travels 100 kilometers in the first hour and 120 kilometers in the second hour. It travels 55% of the whole journey in two hours. How many kilometers are the total lengths of places A and B?
一辆汽车从甲地到乙地，第一小时行了100千米，第二小时行了120千米，两小时一共行了全程的55%，甲乙两地全长多少千米？
<gadget id="calculator">100 + 120</gadget>
<output>220</output>

<gadget id="calculator">55 / 100</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">220 / (11/20)</gadget>
<output>400</output>

<result>400</result>