Question

The motor boat whose speed is 18km/h in still water takes 1 hour more to go.24 upstream than to return to the same point . find the speed of the stream

please answer me......​

Answer 1

Answer:

6km/hr.

Step-by-step explanation:

b=18km/hr

to find s.

u.s=b-s=18-s

d.s=b+s=18+s

let. distance be x.

time taken u.s=x/18-s

time taken d.s=x/18+s

distance is given x=24km.

24/(18-s)-24/(18+s)=1

432+24s-432+24s=324-s square

s square+48s-324=0

s=6km/hr use sreedhar acharya formula.

also refer the attachment.