A motor ship with a speed of 24.9 km / h and a boat with a speed of 32.6 km / h simultaneously departed

| January 14, 2021 | education

A motor ship with a speed of 24.9 km / h and a boat with a speed of 32.6 km / h simultaneously departed from one port in opposite directions. What is the distance between them in 1.8 hours after the start of movement? A cyclist simultaneously set off from one village in one direction at a speed. 12.8 km / h and a pedestrian with a speed of 3.6 km / h. What is the distance between them in 1.5 hours after the start of movement?

1) Find the distance between the motor ship and the boat 1.8 hours after the start of the movement. To do this, we multiply their total speed (since they float in different directions) by the time of movement.
(24.9 + 32.6) * 1.8 = 57.5 * 1.8 = 103.5 km;
Answer: the distance between them is 103.5 km.

2) Let’s find how much the cyclist traveled in 1.5 hours:
12.8 * 1.5 = 11.3 km;
Let’s find how long a pedestrian has walked in 1.5 hours:
3.6 * 1.5 = 5.4 km;
Since they were moving in the same direction, the distance between them is equal to the difference between the segments traveled.
11.3 – 5.4 = 5.9 km.



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