Two people, A and B, walk towards each other from a distance of 2.7 kilometers at the same time. A travels 40 meters per minute, and B travels 50 meters per minute. After a few minutes, they meet?
甲乙两人同时从2.7千米的两地相向而行，甲每分钟行40米，乙每分钟行50米，几分钟后他们二人相遇？
<gadget id="calculator">2.7 * 1_000</gadget>
<output>2_700</output>

<gadget id="calculator">40 + 50</gadget>
<output>90</output>

<gadget id="calculator">2_700 / 90</gadget>
<output>30</output>

<result>30</result>