You can put this solution on YOUR website! The exact answer will depend on the unit of measure you need to use... but here are a couple of ways to answer it:
1) result in hours
That is: 30 miles times one hour over 25 miles.
The unit of measure "miles" cancels out, so the result would be 1.2 hours.
2) result in minutes
That is: 30 miles times sixty minutes over 25 miles.
The unit of measure "miles" cancels out, so the result would be 72 minutes.
* You may also calculate it in seconds. There are 3600 seconds in one hour.