A desk is 480 yuan, and the total price of 15 chairs is 135 yuan more expensive than a desk. How much does a chair cost?
一张办公桌480元，15把椅子的总价钱比一张办公桌贵135元．一把椅子的价钱是多少元？
<gadget id="calculator">480 + 135</gadget>
<output>615</output>

<gadget id="calculator">615 / 15</gadget>
<output>41</output>

<result>41</result>