Harry ran 10 x 50/100 = <<10*50/100=5>>5 meters per hour faster on Tuesday to Wednesday.
So he ran 10 + 5 = <<10+5=15>>15 meters per hour from Tuesday to Thursday.
Then on Friday, he ran 15 x 60/100 = <<15*60/100=9>>9 meters per hour more.
Therefore, he ran 15 + 9 = <<15+9=24>>24 meters per hour on Friday.
#### 24