A, B, and C run from A to B at the same time. When A ran to B, B was still 15 meters away from B, and C was still 32 meters away from B; when B ran to B, C was still 20 meters away from B; when C ran to B, it took 25 seconds , how many meters does B run per second?
甲、乙、丙三人同时从A向B跑．当甲跑到B时，乙离B还有15米，丙离B还有32米；当乙跑到B时，丙离B还有20米；当丙跑到B时，一共用了25秒，乙每秒跑多少米？
<gadget id="calculator">5 - 4</gadget>
<output>1</output>

<gadget id="calculator">20 / 1</gadget>
<output>20</output>

<gadget id="calculator">20 * 5</gadget>
<output>100</output>

<gadget id="calculator">100 / 25</gadget>
<output>4</output>

<gadget id="calculator">4 / 4</gadget>
<output>1</output>

<gadget id="calculator">1 * 5</gadget>
<output>5</output>

<result>5</result>