Uncle Wang drives from place A to place B, traveling 60 kilometers per hour when going there, and 90 kilometers per hour when returning, and it takes 6 hours to go back and forth. How many miles is it from A to B?
王叔叔开车从甲地到乙地，去时每小时行60千米，回来时每小时行90千米，来回共用6小时．从甲地到乙地有多少千米？
<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">6 * (3/5) * 60</gadget>
<output>216</output>

<result>216</result>