Question

A ship goes downstream from one port to another in 8 hours and covers the same distance upstream in 9 hours. If the speed of the stream is 3 km/hr, find the speed of the ship in still water.?

Answer 1

Step-by-step explanation:

∴ Speed of the steamer in still water = 19 km/h . Distance between the ports = 9(19 + 1) = 180 km .

Answer 2

Answer:

51 km/hr

Step-by-step explanation:

(x+3) * 8 = (x-3) * 9

8x+24 = 9x-27
51 = x

X+3 is for the boat going downstream
X-3 is for boat going upstream
Multiply both sides with the time it takes to do the journey
Solve the equation