A boat covers a distance of 400 km 400 \text{ km} 400 km downstream and 320 km 320 \text{ km} 320 km upstream in a total of $40$ hours. The downstream...
Question
A boat covers a distance of downstream and upstream in a total of $40$ hours. The downstream speed of the boat is more than its upstream speed. What is the time taken (in hours) by the boat to travel downstream?