SOLUTION: Bobby and Rick are in a 12-lap race on a one-mile oval track. Bobby,averaging 82mph,has completed two laps just as Rick is getting his car onto the track. What speed does Rick have
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-> SOLUTION: Bobby and Rick are in a 12-lap race on a one-mile oval track. Bobby,averaging 82mph,has completed two laps just as Rick is getting his car onto the track. What speed does Rick have
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Question 1057742: Bobby and Rick are in a 12-lap race on a one-mile oval track. Bobby,averaging 82mph,has completed two laps just as Rick is getting his car onto the track. What speed does Rick have to average to be even with Bobby at the end of the twelveth lap? Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! Bobby has 10 miles to go, speed 82 mph, so he time is 10/82 hours.
Rick has 12 miles to go and has to do it in 10/82 hr
Speed is 12/(10/82)=984/10=98.4 mph
Check. 98.4 mph is 1.64 miles per minute, so he will require 7.32 minutes
10/82 hours is 7.32 minutes
