For processing parts, the master can process 43 parts per hour, and the apprentice can process 7 parts less than the master per hour. They cooperate to process 395 parts at the same time. How many hours can they complete the task?
加工零件，师傅每小时能加工43个，徒弟每小时比师傅少加工7个，他们同时合作加工395个零件，几小时能完成任务？
<gadget id="calculator">43 - 7</gadget>
<output>36</output>

<gadget id="calculator">36 + 43</gadget>
<output>79</output>

<gadget id="calculator">395 / 79</gadget>
<output>5</output>

<result>5</result>