Take out half of the eggs from the basket each time, a total of 4 times, and finally there are 3 eggs left in the basket. How many eggs were there in the basket?
从篮中每次取出鸡蛋的一半，一共取4次，最后篮中剩3个鸡蛋，篮中原来有多少个鸡蛋？
<gadget id="calculator">3 * 2 * 2 * 2 * 2</gadget>
<output>48</output>

<result>48</result>