The distance between the two piers is 88.2 km. From these piers, two motor boats were simultaneously poured

| January 10, 2021 | education

The distance between the two piers is 88.2 km. From these piers, two motor boats were simultaneously poured out towards each other, which met 1.5 hours after the start of the movement. One of them was moving at a speed of 28.3 km / h. Find the speed of the second boat.

If we assume that after 1.5 hours both boats met, then first we find how long the first boat sailed in these 1.5 hours. To do this, multiply its speed, 28.3 km / h, by the travel time, that is, by 1.5 hours:
28.3 * 1.5 = 42.45 km;
Now, from the total segment of the route, 88.2 km, we subtract the distance traveled by the first boat, thereby finding the route taken by the second:
88.2 – 42.45 = 45.75 km;
We now have all the data to find the speed of the second boat. To do this, divide the distance traveled by the second boat by its travel time, we find:
45.75 km: 1.5 hours = 30.5 km / h.



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