The school bought 5 chairs and 2 tables for 547.5 yuan. Given that each table is 120 yuan, how much is each chair?
学校买来5把椅子和2张桌子共用去547.5元．已知每张桌子120元，则每把椅子多少元？
<gadget id="calculator">120 * 2</gadget>
<output>240</output>

<gadget id="calculator">547.5 - 240</gadget>
<output>307.5</output>

<gadget id="calculator">307.5 / 5</gadget>
<output>61.5</output>

<result>61.5</result>