Xiaoli and Xiaoming came towards each other from two places at the same time, and met after 4.2 minutes. Xiao Li walks 57.2 meters per minute, and Xiao Ming walks 62.8 meters per minute. How many meters are the distance between the two places?
小丽和小明同时从两地相对走来，经过4.2分钟相遇．小丽每分钟走57.2米，小明每分钟走62.8米．两地相距多少米？
<gadget id="calculator">57.2 * 4.2</gadget>
<output>240.24</output>

<gadget id="calculator">62.8 * 4.2</gadget>
<output>263.76</output>

<gadget id="calculator">240.24 + 263.76</gadget>
<output>504</output>

<result>504</result>