Problema Solution
A boat travels 20 miles downstream in the sometime it travels 10 miles upstream. Find the speed of the boat in still water. if the current is 5mph.j
Answer provided by our tutors
We will use the formula
t = s / v where t is time, s is the distance and v is the speed.
Let
c = 5 mph be the speed of the current
b = the speed of the boat in still water
20 / (b + 5) = 10 / (b - 5)
we find
b = 15 mph
The speed of the boat in still water is 15 mph.