If a typist types a manuscript, if he types 24 pages per day on average, he can finish typing in 15 days. If he wants to finish typing this manuscript 3 days in advance, how many pages should he type on average per day?
一位打字员打一本书稿，如果平均每天打24页，15天可以打完，若想提前3天打完这本书稿，平均每天应打多少页？
<gadget id="calculator">24 * 15</gadget>
<output>360</output>

<gadget id="calculator">15 - 3</gadget>
<output>12</output>

<gadget id="calculator">360 / 12</gadget>
<output>30</output>

<result>30</result>