Speed of boat in still water when speed of downstream and upstream are given.

Speed of water when speed of downstream and upstream are given

What is upstream speed when speed of boat in still water and speed of stream are given

What is downstream speed when speed of boat in still water and speed of stream are given

What is the speed of the boat in still water? I. The speed downstream of the boat is thrice the speed upstream.II.The sum of the speeds of the boat,upstream and downstream is 12 kmph.

The speed of a boat in upstream is 2/3 that of downstream. Find the ratio of speed of boat in still water and to the average speed of boat in downstream and upstream?

The ratio of the speed of a boat in still water and the speed of the stream is 5:1. If the speed of travelling downstream is 24 km/hr, then find the time taken by boat to cover 48 km while moving upstream