Two cyclists, A and B, are training on a lakeside road with a circumference of 8000 meters. A travels 400 meters per minute. If they travel in opposite directions at the same time and meet each other in 8 minutes, what is the speed of B? How much rice?
甲，乙两名自行车运动员在周长为8000米的湖边道路上进行训练，甲每分钟行400米，如果两人同时同地反向而行，8分钟相遇，问乙的速度是每分钟多少米？
<gadget id="calculator">8_000 / 8</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 - 400</gadget>
<output>600</output>

<result>600</result>