A travels 1/4 more distance than B, and B takes 1/4 more time than A. When A travels 500 meters, how many meters does B travel?
甲走的路程比乙多(1/4)，乙所用的时间比甲多(1/4)，甲走500米的同时乙走多少米．
<gadget id="calculator">1 / 4</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">1 / (5/4)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(5/4) / (4/5)</gadget>
<output>25/16 = around 1.5625</output>

<gadget id="calculator">1 / (25/16)</gadget>
<output>16/25 = around 0.64</output>

<gadget id="calculator">500 * (16/25)</gadget>
<output>320</output>

<result>320</result>