Uncle Wang walked at a speed of 8 kilometers per hour for 6 hours, and when he came back, he walked 6 kilometers per hour. How many hours will it take to come back?
王叔叔以每小时8千米的速度行了6小时，回来时每小时行6千米．回来要走多少小时？
<gadget id="calculator">6 / 6</gadget>
<output>1</output>

<gadget id="calculator">8 * 1</gadget>
<output>8</output>

<result>8</result>