Confused in js

Question

You need to plan a road trip. You are traveling at an average speed of 40 miles an hour.
Given a distance in miles as input (the code to take input is already present), output to the console the time it will take you to cover it in minutes.

Sample Input:
150

Sample Output:
225

function main() {
var distance = parseInt(readLine(), 10);
//your code goes here
var distance = 590
var speed= 40
var minutes = distance/speed
console.log(minutes * 60)
}

Where did the 590 come from

Answer 1

is it about commenting lesson?
I think you need to make this program to work according to description.. So comment that line.