truck carries 12 cartons of apple juice and 15 cartons of orange juice, each with 24 bottles. How many bottles are there in total in this truck?
一辆卡车运有12箱苹果汁，15箱橘子汁，每箱24瓶，这辆卡车一共运有多少瓶饮料？
<gadget id="calculator">12 + 15</gadget>
<output>27</output>

<gadget id="calculator">27 * 24</gadget>
<output>648</output>

<result>648</result>