Question

A boat goes 24 km upstream and 28 km downstream in 6 hrs. It goes 30 km upstream and 21 km downstream in 6-hrs. Find the speed of the boat in still water and also speed of the stream.

Step by step explanation ​

Answer 1

Answer:

let the speed of stream = x km/ h

speed in downstream = x+21 in

speed in upstream= x-30

time= 6 hrs

1/x+21 - 1/x-30 = 6

solve it you definitely get the answer