Li Hong rides a bicycle and Zhang Jun rides a motorcycle along the same route from A to B. Li Hong drives two hours before Zhang Jun and completes the journey in 6 hours. Zhang Jun waits for Li Hong to start after two hours. The whole journey, the whole journey is 60 kilometers, how many hours after Li Hong set off and met Zhang Jun?
李红骑自行车和张军骑摩托车沿相同路线由甲地到乙地行驶，李红比张军先开两个小时，6小时行完全程，张军等李红两个小时之后出发，两小时行完全程，全程60千米，李红出发几小时后与张军相遇？
<gadget id="calculator">60 / 6</gadget>
<output>10</output>

<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">60 - 20</gadget>
<output>40</output>

<gadget id="calculator">60 / 2</gadget>
<output>30</output>

<gadget id="calculator">10 + 30</gadget>
<output>40</output>

<gadget id="calculator">40 / 40</gadget>
<output>1</output>

<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<result>3</result>