The distance between A and B is 264 kilometers. A takes a bus from A to B and travels an average of 80 kilometers per hour. B rides a motorcycle from B to A and travels an average of 32 kilometers per hour. When A travels When meeting B after traveling 200 kilometers, how many hours does A set off earlier than B?
A、B两地相距264千米，甲乘坐客车从A地去B地，平均每小时行80千米，乙骑摩托车从B地去A地，平均每小时行32千米，当甲行了200千米时与乙相遇，求甲比乙提前几小时出发的？
<gadget id="calculator">200 / 80</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">264 - 200</gadget>
<output>64</output>

<gadget id="calculator">64 / 32</gadget>
<output>2</output>

<gadget id="calculator">(5/2) - 2</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>