There is a bus with a body length of 15 meters on the road, running from east to west, with a speed of 18 kilometers per hour. There are two young people, A and B, running in the morning on the sidewalk beside the road. A runs from east to west, and B runs from east to west. Run from west to east. At a certain moment, the car catches up with A, and the car leaves A after 6 seconds; then, half a minute later, the car encounters B running head-on; after another 2 seconds, the car leaves B. How many seconds will it take for A and B to meet each other?
马路上有一辆车身长为15米的公共汽车，由东向西行驶，车速为每小时18千米，马路一旁的人行道上有甲乙两名年轻人在晨跑，甲由东向西跑，乙由西向东跑．某一时刻，汽车追上甲，6秒钟后汽车离开了甲；接着过了半分钟，汽车遇到迎面跑来的乙；又过了2秒钟，汽车离开了乙．求再过多少秒甲乙两人相遇？
<gadget id="calculator">30 + 2</gadget>
<output>32</output>

<gadget id="calculator">5 * 32</gadget>
<output>160</output>

<gadget id="calculator">15 / 6</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">5 - (5/2)</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">32 * (5/2)</gadget>
<output>80</output>

<gadget id="calculator">160 - 80</gadget>
<output>80</output>

<gadget id="calculator">(5/2) + (5/2)</gadget>
<output>5</output>

<gadget id="calculator">80 / 5</gadget>
<output>16</output>

<result>16</result>