Mr. Wang has 48 essays to correct, and 24 of them have already been approved. If the remaining 8 papers are graded every hour, how many hours will it take to complete the grades?
王老师要批改48篇作文，已经批了24篇．如果剩下的每小时批改8篇，还要几个小时才能批完？
<gadget id="calculator">48 - 24</gadget>
<output>24</output>

<gadget id="calculator">24 / 8</gadget>
<output>3</output>

<result>3</result>