A desk is 480 yuan, and the total price of 5 chairs is 135 yuan more expensive than a desk. How much does a chair cost?
一张办公桌480元，5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 / 5</gadget>
<output>123</output>

<result>123</result>