Let the speed of the boat be x km/h
60/(16+x( + 60/(16-x) = 5
hint: multiply each term by (16+x)(16-x)
(I got x=8)
A boat travels 60 km upstream and back again in 8 hours. If the speed of the boat is 16 km/h, what is the speed of the current?
1 answer
1 answer