A chair is 35.4 yuan, which is 16.2 yuan cheaper than a table. How much does Xiao Ming buy a set of tables and chairs?
一把椅子35.4元，比一张桌子便宜16.2元，小明买一套桌椅，共用多少元？
<gadget id="calculator">35.4 + 16.2 + 35.4</gadget>
<output>87</output>

<result>87</result>