Question

You run to your girlfriend's house and announce that you were running at a rate of 15 miles per hour. She knows this is not true because she knows

Answer 1

that you've been lying her since your relation ship has begun !! O_O LOL

Answer 2

15 miles per hour is too fast for an ordinary human to run.

Answer 3

7.45 miles for hour is the speed of an average human. by trot

Answer 4

She knows this is not true because she knows that the atomic mass of Carbon is 12