Question

a streamer goes downstream and covers the distance between two parts in 6 hours. while it covers the same distance upstream in 8 hours.if the speed of stream is 2km/h , find the speed of streamer in still water

Answer 1

let speed of streamer be x
speed of stream be y
speed of upstream =(x-y)km
speed of downstream=(x+y)km
time taken over upstream= 2/x-y = 8hrs
by solving this u will get the correct answer

Answer 2

Answer:

Step-by-step explanation:

Let speed of boat is "x" and distance between 2 citites be "d"

In downstream speed will  be x+2

hence (x+2)6=d-------->1

and x-2 will be speed of boat in upstream

hence (x-2)8=d-------->2

from 1 and 2 we get x=14 i.e, speed of boat and d=96 i.e., distance between 2 citites.