There are how many hours between x minutes past 12 noon and 8:10 p.m. of the same day, where x < 60? Pick
A) (490-x)/60 B) (480-x)/60 C) (470-x)/60 D) 60 (60 – x + 7) E) 60 (60 – x + 17)
Let's just say that X is equal to 10 so we will have that the number of hours will be 8, this is our target value. Now plug 10 in the answer choices to see which gives 8.   (490-x)/60 is correct here.
<result>A</result>
There are how many hours between x minutes past 12 noon and 8:10 p.m. of the same day, where x < 60?