Posted by John on Tuesday, September 1, 2009 at 6:21am.
1 - 1.5 are all fine. I'd say 1-1 and 1-4 are smoother, but really, they're all just fine.
2 - 2.3 are all fine, too. It might be better to write "2 to 3" rather than "2-3" in a sentence.
Other answers might be these:
I don't have any free time each day.
I have about 4 hours of free time each day.
I have exactly 2 hours of free time each day.
The possibilities of alternative answers are almost endless, but you get the idea, right?
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