Your record bicycle pace along a favorite trail is 16 mph. On a recent ride, you traveled the 25 mile route in a time of 90 minutes. What was your average speed? Did it break your record pace?
d = rt or distance = rate times time. You want your answer in miles per hour so convert 90 minutes to 1.5 hours. Now plug in the values: 25mi = r*1.5hrs. r = 25/1.5 = 16.667mph.
This is greater than 16mph, so did you really break your record ?