The speed of a car is 820/min, and the speed of a bicycle is 180/min. They start from A and B at the same moment and meet at point a 15 minutes later. How many kilometers are there between A and B?
一辆汽车的速度是820/分，一辆自行车的速度是180/分，它们同一刻从甲、乙两地相对出发，15分钟后在a点相遇．甲、乙两地相距多少千米？
<gadget id="calculator">820 + 180</gadget>
<output>1_000</output>

<gadget id="calculator">15 / 1_000</gadget>
<output>3/200 = around 0.015</output>

<gadget id="calculator">1_000 * (3/200)</gadget>
<output>15</output>

<result>15</result>