If a boat moves a distance x down stream in time ‘t’, then turns back and moves a distance y in same time ‘t’. If `x /y` = m and velocity of boat is n times greater than velocity of river, where n is greater than unity then -

A beat needs one-third of the time to go a certain distance downstream that it takes upstream. Then number of times the velocity of boat is greater than that of current is:

Two boats A and B moved away from a buoy anchored in the middle of a river along the mutually perpendicular straight lines. A moved along the river and B at fight angle to it Having moves off equal distances from the boy, the boats returned. Find the ratio of the times of motion of the boats, if the velocity of each boat with respect to still water in eta =1.2 times greater than the velocity of water current.

Two boats A and B moved away from a buoy anchored in the middle of a river along the mutually perpendicular straight lines. A moved along the river and B at fight angle to it Having moves off equal destances from the boy, the boats returned. Find the ratio of the times of motion of the boats, if the velocity of each boat with rspect to still warer in eta times greater than the velocity of warer current.

A boat takes 4 hrs to travel certain distance in a river in down stream and it takes 6 hrs to travel the same distance in upstream. Then the time taken by the boat to travel the same distance in still water is

A boat takes 4 hrs to travel certain distance in a river in down stream and it takes 6 hrs to travel the same distance in upstream. Then the time taken by the boat to travel the same distance in still water is