A chair is 120 yuan, and the price of a table is five times that of a chair. How much does it cost to buy such a set of tables and chairs?
一张椅子120元，一张桌子的价钱是椅子的5倍，买这样一套桌椅需要多少元？
<gadget id="calculator">120 * 5</gadget>
<output>600</output>

<gadget id="calculator">600 + 120</gadget>
<output>720</output>

<result>720</result>