A boat takes `2 hours` to travel `8 km` and back in still water lake.With water velocity of `4 kmph`,the time taken for going upstream of `8km` and coming back is

A boat takes two hours to travel 8 km and back in still water. If the velocity of water is 4 km/h, the time taken for going upstream 8 km and coming back is

A boat takes two hours to travel 8 km and back in still water. If the velocity of water is 4 km/h, the time taken for going upstream 8 km and coming back is

A man can swim 3 km/hr in still water. If the velocity of the stream be 2 km/hr, the time taken by him to swim to a place 10km upstream and back is:

A boat takes 6 hours to travel 8km up stream and 32 km down stream and it takes 7 hours to travel 20 km upstream and 16 km downstream.Find the speed of the boat in still water and the speed of the stream.

If the speed of a boat in still water is 8 km/h and the rate of stream is 4 km/h, then find upstream speed of the boat.

A boat takes two hours to travel 8 km down and 8 km up the river when the water is still. How much time will the boat take to make the same trip when the river starts flowing at 4 kmph?

A boat take 6 hours to travel 36 km downstream and 24 km upstream. It take 9 hours to travel 48 km downstream and 40 km upstream. Find the speed of the stream and that of boat in still water.