1. Petya and Vasya simultaneously set off on scooters towards each other. Exactly in the middle between them is a bridge. The road from Petya to the bridge is paved, while the road from Vasya to the bridge is dirt. It is known that they travel at the same speed on the dirt road, and on the paved road, Petya moves 3 times faster than on the dirt road. Petya reached the bridge in one hour and, without stopping, continued his journey. How long after setting off will he meet Vasya?