If the eggs harvested by Chunya Chicken Farm on Monday are 24kg per box, 15kg is still missing after filling 30 boxes. How many kilograms of eggs did the chicken farm collect on Monday?
春牙鸡场星期一收的鸡蛋，如每果24千克装一箱，装满30箱还缺15千克．鸡场星期一收了多少千克的鸡蛋？
<gadget id="calculator">24 * 30</gadget>
<output>720</output>

<gadget id="calculator">720 - 15</gadget>
<output>705</output>

<result>705</result>