1. Danya is making a car trip from point A to point B, which are 300 km apart. The route of the trip is displayed on the computer screen. At any moment in time $t$ (hours), Danya can receive information about the distance traveled $s(t)$ (km), the speed of movement $v(t)$ (km/hour), and the estimated time $T=T(t)$ (hours) until the end of the trip. The program for calculating $T(t)$ is based on the assumption that the remaining part of the journey will be traveled at a speed equal to the average speed of the vehicle's movement over the time interval $[0 ; t]$. One hour after the start of the trip, he looked at the speedometer - 75 km/h. On the time interval $[1 ; 1.5]$, Danya noticed that $T$ did not change. How far from point $A$ was the car 90 minutes after the start of the trip, and what was its speed?
Answer: 1) 180 km; 2) 48 km/h.