A garment factory produces a batch of clothes and works 6 hours a day, which can be completed in 25 days. If the work efficiency remains the same, and it needs to be completed 5 days ahead of schedule, how many hours should you work every day? (Answer with proportional knowledge)
制衣厂生产一批衣服，每天工作6小时，25天可以完成．如果工作效率不变，要提前5天完成，每天应工作多少小时？(用比例知识解答)
<gadget id="calculator">6 * 25</gadget>
<output>150</output>

<gadget id="calculator">25 - 5</gadget>
<output>20</output>

<gadget id="calculator">150 / 20</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>