I don't understand why you think that the slower boat will travel different distances on the different crossings.
Surely that answer would have marks deducted for unnecessary working?![]()
the fast boat will have a speed of 146.153846m/min.
the fast boat will also have been in motion for 19.5min. It will therefore have travelled a total of 1950m
the fast boat will have a speed of 146.153846m/min.
the fast boat will also have been in motion for 19.5min. It will therefore have travelled a total of 1950m
I think you will find 146.153846m/min x 19.5 equals .....2850M.
So still no answer.