It costs 198 yuan to buy a chair and a table. The price of a table is three times that of a chair. How much is the price of a chair?
买一把椅子和一张桌子共198元，一张桌子的价钱是一把椅子的3倍，一把椅子的价钱是多少？
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">198 / 4</gadget>
<output>99/2 = around 49.5</output>

<result>99/2 = around 49.5</result>