maybe around 3 mins, but it depends on her speed and how fast she can run!!
Fastest mile ever run is, I believe 4 minutes.
So, a good mile and a half would be about 9-11 minutes, at a good pace, but like the previos poster said, it all depends on their speed.
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Well I am a 12 year old girl and I run a mile in 5-6 minutes! An average runner should run it in about 5-7 minutes while an average person usually runs it about 8-12 minutes!-------------------------------------------------------
I am thirteen, and believe me it depends how much in shape you are in. I'm in REALLY good shape and we actually did a mile run yesterday. It took me 4:45 to finish it. That is my exact time, but I'm in really good shape.
You should be able to do it in about 5-10 minutes if you are not in shape. When I wasn't in shape I would finish a mile run in 9 minutes. That was in 4th grade. I am not in 7th grade. It depends what shape you are in, don't think you're a horrible runner if you don't get the times I'm giving you. ;-)