Xiao Jiang walks 50 meters per minute, Xiao Fang walks 60 meters per minute, and Xiao He walks 70 meters per minute. Xiao Jiang and Xiao Fang set off from A, and Xiao He started from B at the same time. Xiao He meets Xiao Jiang 3 minutes after meeting Xiao Fang. How many kilometers are there between A and B?
小江每分钟走50米，小方每分钟走60米，小何每分钟走70米．小江和小方从甲地，小何从乙地同时相向出发，小何遇到小方后3分钟又遇到小江．甲乙两地相距多少千米？
<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<gadget id="calculator">70 * 3</gadget>
<output>210</output>

<gadget id="calculator">150 + 210</gadget>
<output>360</output>

<gadget id="calculator">70 - 50 - 70</gadget>
<output>-50</output>

<gadget id="calculator">60 + (-50)</gadget>
<output>10</output>

<gadget id="calculator">360 / 10</gadget>
<output>36</output>

<gadget id="calculator">60 + 70</gadget>
<output>130</output>

<gadget id="calculator">130 / 1_000</gadget>
<output>13/100 = around 0.13</output>

<gadget id="calculator">36 * (13/100)</gadget>
<output>117/25 = around 4.68</output>

<result>117/25 = around 4.68</result>