Mom went to the supermarket to buy three bags of milk powder, paid the salesperson 100 yuan, and the salesperson got back 4 yuan. How much is the average price of each bag of milk powder?
妈妈去超市买了三袋奶粉，付给营业员100元，营业员找回了4元，平均每袋奶粉售价多少元？
<gadget id="calculator">100 - 4</gadget>
<output>96</output>

<gadget id="calculator">96 / 3</gadget>
<output>32</output>

<result>32</result>