The motor ship went along the river for 1.8 hours, and against the current – 0.9 years. What way did the motor

The motor ship went along the river for 1.8 hours, and against the current – 0.9 years. What way did the motor ship go during all this time, if its own speed is 28 km / h, and the speed of the current is 1.6 km / h?

The proper speed and speed of the current are known, we write down what the speeds in both directions of movement are equal to:
28 + 1.6 = 29.6 (km / h) – downstream;
28 – 1.6 = 26.4 (km / h) – upstream.
The time of movement in both directions is known from the condition, the speed is found. Find the distance traveled:
29.6 * 1.8 = 53.28 (km) – path downstream;
26.4 * 0.9 = 23.76 (km) – the path against the current.
Total distance covered by the ship:
53.28 + 23.76 = 77.04 (km).
Answer: the route of the ship for the entire time was 77.04 km.