A, B, and C are running a 200-meter race. When A reaches the finish line, B is still 40 meters away from the finish line, and C is still 80 meters away from the finish line. Calculated according to this speed, when B reaches the finish line, C is still 40 meters away from the finish line. How many meters?
甲、乙、丙三人进行200米的赛跑，当甲到达终点时，乙距离终点还有40米，丙距离终点还有80米，照这样的速度计算，乙到达终点时，丙距离终点还有多少米？
<gadget id="calculator">200 / 4</gadget>
<output>50</output>

<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<gadget id="calculator">200 - 150</gadget>
<output>50</output>

<result>50</result>