We have to draw a sketch to understand the question
To find the speed of the boat we have to find the distance in the sketch
Let me put letters for the points to be easy
We need to find BC using the trigonometry ratio
AB = 60 m
Switch BD with tan 9.8
Now, we need to find BC using the same ratio but with an angle of measure 32.4 degrees
To find the distance subtract BC from BD
The time is from 14.58 to 15.01
There are 3 minutes between them
1 h = 60 min
1 km = 1000 m
Then we will divide the distance by 1000 and the time by 60
The speed of the boat is about 0.55 km/h to the nearest 2 decimal places