Question

plz answer this
this question is from dav publication of class 8​

Answer 1

Answer:

acc to question

(in downstream)

s=d/t

3/2=60/35+y(speed of boat = 34)

so,

y=5 km/h

(in upstream)

2=60/35+y

y=-5km/h(not exist)

answer is 5km/h

Step-by-step explanation:

take using the formula of speed

x=speed of

y=speed of water

Answer 2

Answer:

let the speed of boat in still water be x

let the speed of stream be y

so ,

speed upstream =(x-y)

speed downstream =(x+y)

now,time taken to cover 60 km upstream=(32/x-y)

time taken to cover 60 km downstream =(32/x+y)

32/x-y=2

32/x+y=1.5

but we already know that x=35

32/35-y=2

32=70-2y

2y=70-32

2y=38

y=19

sorry this is wrong answer