Two people, A and B, walk along a circular runway with a diameter of 100 meters at the same time. A and B meet for the first time 3 minutes after starting. When they meet for the first time, B walks 40% of the distance. How many meters does A walk per minute?
甲、乙两人沿着直径是100米的环形跑道同时同地背向而行，甲出发3分钟后首次与乙相遇，首次相遇时乙走了全程的40%，甲每分钟走多少米？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) / 3</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">100 * 3.14 * (1/5)</gadget>
<output>62.8</output>

<result>62.8</result>