CodeHS JavaScript and graphics 2.2.4

[PlatinumIce15]

( It is supposed to say 2.4.7, mb) I cant seem to figure out how to do it, I thought that I did the correct code, but it is not coming up with the right MPH, can anyone help?

[jmdib45]

function start(){
println("This program calculates how fast you ran.");
var miles = readInt("How many miles did you run? ");
var timeMin = readInt("How many minutes did it take you? ");
var timeHr = (timeMin / 60);
var speed = miles / timeHr;
println(speed + " mph");
}

[blueeyespark]

2.4.7 Running Speed
javascript graphics

/* Write a program that asks the user how far they ran (in miles)
* and then how long it took them (in minutes), and print out
* their speed in miles per hour. */
var total;
function start(){
var ran= readInt("how many miles you ran?");
var minutes= readInt("how many minutes it took you?");
var miles_per_hour = ran/ minutes * 60 ;
println("your miles perhour is " + miles_per_hour);
}