Mom bought 8 bags of instant noodles and a barrel of peanut oil that cost 72 yuan, and the total cost was 104 yuan. How much is a bag of instant noodles?
妈妈买回8袋方便面和一桶价格是72元的花生油，一共用去了104元，一袋方便面多少元？
<gadget id="calculator">104 - 72</gadget>
<output>32</output>

<gadget id="calculator">32 / 8</gadget>
<output>4</output>

<result>4</result>