Uncle Wang drove from the county seat to Wangzhuang to deliver fertilizer. The whole journey is 560 kilometers. When going there, it travels 40 kilometers per hour. After 6 hours of walking, the remaining distance travels 64 kilometers per hour. How many hours will it take to reach Wangzhuang?
王叔叔从县城开车去王庄送化肥．全程560千米，去的时候每小时行40千米，走了6小时后，剩下的路程每小时行64千米，还需要几小时到达王庄？
<gadget id="calculator">40 * 6</gadget>
<output>240</output>

<gadget id="calculator">560 - 240</gadget>
<output>320</output>

<gadget id="calculator">320 / 64</gadget>
<output>5</output>

<result>5</result>