A, B, and C are running a 60-meter race. When A reaches the finish line, B is 10 meters away from the finish line, and C is 20 meters away from the finish line. If B and C continue to rush towards the finish line at the same speed, how many meters will B be ahead of C when they reach the finish line?
甲、乙、丙三人进行60米比赛，当甲跑到终点时，乙距终点10米，丙距终点20米．如果乙和丙按原来的速度继续冲向终点，那当乙到终点时将比丙领先多少米？
<gadget id="calculator">60 - 10</gadget>
<output>50</output>

<gadget id="calculator">60 - 20</gadget>
<output>40</output>

<gadget id="calculator">50 / 40</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">60 / (5/4)</gadget>
<output>48</output>

<gadget id="calculator">60 - 48</gadget>
<output>12</output>

<result>12</result>