A cyclist travels the length of a bike path that is 225 miles long, rounded to the nearest mile. If the trip took him 5 hrs, rounded to the nearest hour, then his average speed must be between:
Length is between 224.5 and 225.4 miles.
Trip is between 4:30 and 5:29 long
We want to maximize and minimize results.
225.4/4.5 = 50.1
224.5/5.5 = 40.8
40.8 <= R <= 50.1
So the range is greater than or equal to 40.8 and less than or equal to 50.1. the only answer choice that allows for all possible values of R is C.
ANSWER: C. 40 and 51 mph
Length is between 224.5 and 225.4 miles.
Trip is between 4:30 and 5:29 long
We want to maximize and minimize results.
225.4/4.5 = 50.1
224.5/5.5 = 40.8
40.8 <= R <= 50.1
So the range is greater than or equal to 40.8 and less than or equal to 50.1. the only answer choice that allows for all possible values of R is C.
ANSWER: C. 40 and 51 mph