The heartbeat speed of an animal is related to its weight. The greater the body weight, the slower the heartbeat; the smaller the total weight, the faster the heartbeat. According to data, the heartbeat of a mouse is about 500 times per minute, and the heartbeat of an elephant is about 2/25 of that of a mouse and about 1/6 of that of a cat. How many beats per minute does a cat's heart beat?
动物心跳的快慢和体重有关系的，体香越大，心跳越慢；全重越小，心跳越快．有资料显示，老鼠每分钟心跳约500次，大象每分钟心跳约是老鼠的(2/25)，约是猫的(1/6)．猫每分钟心跳约多少次？
<gadget id="calculator">2 / 25</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(2/25) / (1/6)</gadget>
<output>12/25 = around 0.48</output>

<gadget id="calculator">500 * (12/25)</gadget>
<output>240</output>

<result>240</result>