A desk is 27 yuan, and a chair is 15 yuan. There are 42 students in Class A of the third grade. How much does it cost to buy a set of desks and chairs for each person?
一张课桌27元，一把椅子15元，三年级甲班有42人，每人买一套桌椅，一共需要多少钱？
<gadget id="calculator">27 + 15</gadget>
<output>42</output>

<gadget id="calculator">42 * 42</gadget>
<output>1_764</output>

<result>1_764</result>