Problema Solution
A boat travels with the current at the rate of 29 km/h and travels against the current at a rate of 21 km/h. What is the rate if the boat in still? What is the rate of the current?
Answer provided by our tutors
let b = velocity of the boat
let v = velocity of the current
we have
b + v = 29
b - v = 21
adding the two equations together gives:
2b = 50
b = 25
the boat is traveling at 25 km/h