A car travels from place A to place B, traveling 37.5% of the journey, which is exactly 81 kilometers. How many miles is the road between the two places?
一辆汽车从甲地开往乙地，行了全程的37.5%，正好行了81千米．两地之间的公路长多少千米？
<gadget id="calculator">37.5 / 100</gadget>
<output>0.375</output>

<gadget id="calculator">81 / 0.375</gadget>
<output>216</output>

<result>216</result>