Question

16. A Nile cruise ship takes 21. 0 h to go upstream from Luxor to Aswan, a distance of 208 km, and 19.8 h to make the return trip downstream. Assuming the ship’s speed relative to the water is the same in both cases, calculate the average speed of the current in the Nile. Answer in : ______ km/h

Answer 1

(v+c)19.8 = (v-c)21
and
(v+c)19.8 = 208