A, B, and C all practice a 400-meter run at a uniform speed. When A reaches the finish line, B is 80 meters away from the finish line, and C is 160 meters away from the finish line. When B reaches the finish line, how far is C from the finish line?
甲、乙、丙三人都以均匀的速度练习400米跑步，当甲到达终点，乙离终点80米，丙离终点160米，当乙到达终点时，丙离终点多少米？
<gadget id="calculator">400 - 160</gadget>
<output>240</output>

<gadget id="calculator">400 - 80</gadget>
<output>320</output>

<gadget id="calculator">240 / 320</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">80 * (3/4)</gadget>
<output>60</output>

<gadget id="calculator">160 - 60</gadget>
<output>100</output>

<result>100</result>