Question

a boat man rows 30 km upstream and 55 km downstream in 12 hours he can row 33 km upstream and 44 km downstream in 10 hrs then find speed of boat in still water​

Answer 1

Answer:

speed in still water = x

let speed of stream = y

upstream = x-y

downstream = x+y

dist. = speed * time

time = dist. / speed

30/x-y + 55/x+y = 12

33/x-y + 44/x+y = 10

let 1/x+y=a

1/x-y =b

30b+55a=12

33b+44a=10

a = 12-30b/55

Step-by-step explanation:

I have made the equations please check nd solve