A thermos and 6 teacups are 36 yuan in total, how much is 24 teacups and 4 thermos bottles?
一个热水瓶和6个茶杯共36元，24个茶杯和4个热水瓶要多少元．
<gadget id="calculator">36 * 4</gadget>
<output>144</output>

<result>144</result>