Car speed = 80 km/h. Truck speed = 72 km/h.<br>
Combined speed = 80 + 72 = 152 km/h.<br>
Time until they meet = 2.5 h.<br><br>
Distance between Town X and Town Y = 152 &times; 2.5 = 380 km.<br><br>
Final Answer: 380 km