Per X How Much Time Will It Take Me,if I Train X Hours Per Day,to Get From 68 To 80.Runescape?

How much time will it take me,if i train X hours per day,to get from 68 to 80.Runescape? - per x

How long does it take when the time because I X per day for 68 to 80.Runescape

I want to know how long it takes to train my strength 68-80.

When the train at least I .. 3 hours per day?

Thanks