Question

I have question so plz give a answer of this question before 1 hours​

Answer 1

hey mate clear nahi he

Answer 2

let the speed of stream be X

so distance covered by the boat in downstream = ( speed of boat + speed of stream ) * time = (35 + X ) * 1.5

now , distance covered by the boat in upstream = ( speed of boat - speed of stream ) * time = ( 35 - X ) * 2

since distance is same in both conditions . therefore, (35 + X ) * 1.5 = ( 35 - X ) * 2

52.5 + 1.5x = 70 - 2x

3.5x = 70 - 52.5

x = 17.5 / 3.5

x = 5

hence the speed of stream = 5 km / hr