A man starting from point P cross a 4km ...

A man starting from point `P` cross a 4km wide lagoon and reaches point `Q` in the shortest possible time by the path shown in the figure. If the person swims at a speed of 3km//hr and walks at a speed of 4km//hr, then find his time fo journey (in minutes).
.

Similar Questions

Explore conceptually related problems

A man travels at a speed of 20 Km/hr. and then returns at a speed of 30 Km/hr. His average speed of whole journey is

A man travelled 12 km at a speed of 4 km/hr and further 10 km at a speed of 5 km/hr. What was his average speed ?

A boat which has a speed of 5 km/hr in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. The velocity of the river water in km/hr is

A man starting from point `P` cross a 4km wide lagoon and reaches point `Q` in the shortest possible time by the path shown in the figure. If the person swims at a speed of 3km//hr and walks at a speed of 4km//hr, then find his time fo journey (in minutes). .

Similar Questions

Recommended Questions

A man starting from point `P` cross a 4km wide lagoon and reaches point `Q` in the shortest possible time by the path shown in the figure. If the person swims at a speed of 3km//hr and walks at a speed of 4km//hr, then find his time fo journey (in minutes).
.