A and B walk toward each other from two places at the same time, and meet each other after 0.25 hours. A travels 4.4 kilometers per hour, and B travels 4.6 kilometers per hour. How many miles is the distance between the two places?
甲、乙两人同时从两处相向而行，经过0.25小时相遇．甲每小时行4.4千米，乙每小时行4.6千米．两处间的距离是多少千米？
<gadget id="calculator">4.4 + 4.6</gadget>
<output>9</output>

<gadget id="calculator">9 * 0.25</gadget>
<output>2.25</output>

<result>2.25</result>