Question

urgent help needed......!!!
a motor boat takes 6 hr. to cover 100 km downstream and 30 km upstream. if it goes 75 km down and returns to starting point in 8 hr. find speed of boat, water. ​

Answer 1

Step-by-step explanation:

let v =velocity of boat

u= velocity of river

speed =distance/time

v+u=100/6.............. equation 1

(v-u)=60/6................ equation 2

add eqn 1and 2

2v =160/6

v=40/3

u=10/3