A chair is 84 yuan, and a desk is 25% more expensive than a chair. How much is a desk?
一把椅子84元，一张课桌比一把椅子贵25%，一张课桌多少元？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">84 * (5/4)</gadget>
<output>105</output>

<result>105</result>