First find how fast each runs.

Apple = 24 miles / 3 miles per hour = <<24/3=8>>8 hours

Mac = 24 miles / 4 miles per hour = <<24/4=6>>6 hours.

Mac runs 8 hours - 6 hours = <<8-6=2>>2 hours faster.

1 hour = 60 minutes, so, Mac runs faster by 2 hours * 60 minutes = <<2*60=120>>120 minutes.

# Answer

120
<|im_start|>system
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<|im_start|>user
Apple can run at a rate of 3 miles per hour. Mac can run at a rate of 4 miles per hour. In minutes, how much faster will Mac run a 24 mile race?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
120
Apple can run at a rate of 3 miles per hour. Mac can run at a rate of 4 miles per hour. In minutes, how much faster will Mac run a 24 mile race?
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