Cars A and B start from places A and B at the same time and drive toward each other. After 5 hours, the two cars meet. At this time, Car A exceeds the midpoint by 25 kilometers. After the meeting, the two cars continue to drive, and Car A arrives in 3 hours. B land. How many kilometers does car B travel per hour?
甲、乙两车同时从A、B两地出发，相向而行，两车经过5小时相遇，此时，甲车超过中点25千米；相遇后两车继续行驶，3小时后甲车到达B地．求乙车每小时行驶多少千米？
<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">2 / 2 / (1/8)</gadget>
<output>8</output>

<gadget id="calculator">25 * 8</gadget>
<output>200</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">200 * (3/8)</gadget>
<output>75</output>

<gadget id="calculator">75 / 5</gadget>
<output>15</output>

<result>15</result>