The school bought 3 tables and 4 chairs, which cost 404 yuan in total. 80 yuan per table, how much is each chair?
学校买来3张桌子和4把椅子，一共用去404元．每张桌子80元，每把椅子多少元？
<gadget id="calculator">3 * 80</gadget>
<output>240</output>

<gadget id="calculator">404 - 240</gadget>
<output>164</output>

<gadget id="calculator">164 / 4</gadget>
<output>41</output>

<result>41</result>