Xiao Ming starts from point A and walks to point B at a speed of 70 meters per minute. After walking 20% of the whole journey, Xiao Hua starts from point B at a speed of 80 meters per minute and walks towards Xiao Ming. After 12 minutes meet. What is the distance between A and B?
小明从A地出发，以每分钟70米的速度向B地走去，行了全程的20%以后，小华以每分钟80米的速度从B地出发，与小明相向而行，12分钟后相遇．A、B两地相距多少米？
<gadget id="calculator">70 + 80</gadget>
<output>150</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">12 / (4/5)</gadget>
<output>15</output>

<gadget id="calculator">150 * 15</gadget>
<output>2_250</output>

<result>2_250</result>