Wang Ming walked from city A to city B, while Liu Yang rode a bicycle from city B to city A, and they met after 1.2 hours. After meeting, Liu Yang went back to City A and caught up with Wang Ming 45 minutes after the first meeting. The two continued to move forward, and turned back when Liu Yang reached City B. How many hours after the second meeting did the two meet for the third time.
王明从A城步行到B城，同时刘洋从B城骑车到A城，1.2小时后两人相遇．相遇后继续前进，刘洋到A城立即返回，在第一次相遇后45分钟又追上了王明，两人再继续前进，当刘洋到达B城后立即折回．两人第二次相遇后多少小时第三次相遇．
<gadget id="calculator">1.2 * 3</gadget>
<output>3.6</output>

<gadget id="calculator">3.6 - 1.2 - 0.75</gadget>
<output>1.65</output>

<result>1.65</result>