Answer:
14.4, 72/5, or 14 2/5 minutes.
Explanation:
To do this, you take the 12 minutes Jim can run a mile in, and multiple it by 6/5, or divide 12 by 5/6, either work.
From there, you'll get 14.4, or if you need a fraction there's 72/5, or 14 2/5.
To test if this answer if correct, you can multiply 14.4 by 5/6, and you'll find that it is 12, meaning the answer if correct.
Hope I helped!