and B start from AB opposite each other, and A arrives at C at 7:00 am. B didn't arrive at C until 5:00 p.m. If the speed ratio of A and B is 3:2. So when did A and B meet today?
甲、乙两人从AB两地相对出发，上午7时甲到C地．下午5时乙才到C地．如果甲、乙速度比为3：2．那么甲、乙两人今天何时相遇？
<gadget id="calculator">7 + 4</gadget>
<output>11</output>

<result>11</result>