Question

A boat goes downstream from one place to another in 9 hours. It covers the same distance upstream in 11 hours. If the speed of the stream is 2km per hours find the distance between the two places

Answer 1

Hello,

Solution  :

let the distance be X

therefore upstream speed will be (X/11)  km/hr

and downstream speed will be (X/9)  km/hr

now, speed of stream =(upstream speed + downstream speed)/2 = 2

i.e X/11 + X/9 =4

on solving we get distance X  = 198 KM

let me know if that helps :)

Answer 2

Answer:

Step-by-step explanation: