Tianle Chicken Farm picked up 3,020 eggs today, and Aunt Li packed the eggs into 60 boxes, and there were 20 eggs left. How many eggs are there on average per carton?
天乐养鸡场今天捡了3020只鸡蛋，李阿姨把鸡蛋装成60箱后，还剩20只．平均每箱鸡蛋有多少只？
<gadget id="calculator">3_020 - 20</gadget>
<output>3_000</output>

<gadget id="calculator">3_000 / 60</gadget>
<output>50</output>

<result>50</result>