In order to support Sichuan earthquake relief, a certain factory needs to process a batch of tents. It plans to process 1200 tents per day, which can be completed in 15 days. According to the situation in the disaster area, the task needs to be completed five days in advance. How many tops do you need to process on average every day?
为支援四川抗震救灾，某工厂要加工一批帐篷，计划每天加工1200顶，15天可以完成．根据灾区情况需要提前五天完成任务，平均每天需要加工多少顶？
<gadget id="calculator">15 - 5</gadget>
<output>10</output>

<gadget id="calculator">15 / 10</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">1_200 * (3/2)</gadget>
<output>1_800</output>

<result>1_800</result>