Pre-Olympic Rehearsal Puzzle
At last month's rehearsal, four top athletes competed in two qualifying 400 metre races.
As the results were expected to be mislaid, various notes were taken to ensure the accuracy of the overall placings:
No-one finished both races in the same position.
In both races Sam beat the runner whose surname was Donald.
Blake Curtail came third in the second race and Pat came last in the first race.
In the second race the athlete whose surname was Arnold won, and the athlete whose surname was Bowler came last.
In the first race, Blake beat Jamie, but Jamie beat Sam.
Can you determine who finished where in each of the races?
The answer is not 50 mph.
Solution (Previous Puzzle):
48 miles per hour.
Time = Distance ÷ Speed
Speed = Distance ÷ Time
The outward journey took 174 miles ÷ 40 mph = 4.35 hours.
The return journey took 174 miles ÷ 60 mph = 2.9 hours.
So I travelled a total of 2 x 174 = 348 miles. I did this in a total of 4.35 + 2.9 = 7.25 hours.
My overall average speed was therefore 348 miles ÷ 7.25 hours = 48 miles per hour.
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