speed of current --- x mph
time to go 217 miles with the current = 217/(29+x)
time to go 189 againts current = 189/(29-x)
217(29+x) = 189/(29-x)
cross-multiply, solve for x
A boat can travel 29 mph. If it travels 217 miles with the current in the same lenght of the time it travels 189 against the current? What is the current
1 answer
1 answer