Here is the working out in stages:
First of all, work out how many yards is 15840 feet
1 yard=3 feet, so divide 15840 by 3.
You get that 15840 feet=5280 yards
Now we want to work out how many miles that is.
We know that 1 mile=1760 yards.
So divide 5280 by 1760 to get the number of miles.
You get that 5280 yards=3 miles, but 5280 yards=15840 feet.
So the answer is 15840 feet=3 milesChat with our AI personalities