Question

Pawan can row 24km/hr in still water. when the river is running at 4.8 km/hr he takes him 1hour to row to a place and to came. How far is the place ​

Answer 1

Explanation:

Pawan's speed downstream = 24 + 4.8 = 28.8 km/h

Pawan's speed upstream = 24 - 4.8 = 19.2 km/h

Let the required distance be x.

According to the question,

[Math Processing Error]x28.8+x19.2=1

[Math Processing Error]19.2x+28.8x552.96=1

[Math Processing Error]19.2x+28.8x=552.96

[Math Processing Error]48x=552.96

[Math Processing Error]x=552.9648 = 11.52 km