A desk is 85.8 yuan, a chair is 27.5 yuan, and 90 sets of desks and chairs (one desk and one chair are a set), how much will it cost in total?
一张课桌85.8元，一把椅子27.5元，买90套课桌椅(一张课桌和一把椅子为一套)，一共要花多少元钱？
<gadget id="calculator">85.5 + 27.5</gadget>
<output>113</output>

<gadget id="calculator">113 * 90</gadget>
<output>10_170</output>

<result>10_170</result>