Uncle Wan drove from place A to place B, and drove 100 kilometers in the first 2 hours. At this speed, it took 3 hours to go from place A to place B. How many kilometers are there between places A and B? (Solve with ratio)
万叔叔开车从甲地到乙地，前2小时行了100千米，照这样的速度，从甲地到乙地一共用了3小时，甲乙两地相距多少千米？(用比例解)
<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<result>150</result>