Grandpa Li brought 700 yuan to buy feed. After buying 16 bags, there was 60 yuan left. How much is each bag of feed?
李爷爷带了700元钱买饲料，买了16袋后，剩下60元，每袋饲料多少钱？
<gadget id="calculator">700 - 60</gadget>
<output>640</output>

<gadget id="calculator">640 / 16</gadget>
<output>40</output>

<result>40</result>