How many miles per hour do you have to run to run 1.5 miles in under 12 minutes?

Answer 1

Think about it this way:

To go 1.5 miles in 12 minutes, how fast do you need to do each mile? To answer that, divide 12 by 1.5. That would give you 8 minutes per mile.

An hour has 60 minutes, so to get the miles per hour you'd have to ask "How many 8 minute miles are there in an hour?" Divide 60 by 8 and you get 7.5 miles per hour.

7.5mph would get you 1.5 miles in 12 minutes.

So to get 1.5 miles in UNDER 12 minutes you'd need to go at least a touch faster than 7.5mph.

or,

as 1 hour = 60 mins

We can do it in this way ,

it take 12 mins to go 1.5 miles

then, for 1 min = 1.5/12

for , 60 mins = 1.5*60/12 = 7.5 miles / hr

answer : at least 7.5 miles/hour