The price of a set of desks and chairs is 320 yuan, and the price ratio of tables and chairs is 5:3. How much is a desk?
一套课桌椅的价格是320元，桌子与椅子的价格比是5：3，一张课桌多少元？
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">320 / 8</gadget>
<output>40</output>

<gadget id="calculator">40 * 5</gadget>
<output>200</output>

<result>200</result>