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Brain Teasers and Puzzles



Puzzle Details

During a recent Formula 1 race meeting, Blake managed to complete a lap with an average speed of 150 mph.

They managed to complete the first two fifths of the lap length at a speed of 123 mph and the second two fifths of the lap length at a speed of 164 mph.

At what speed was the final one fifth of the lap length covered?

Puzzle Copyright © Kevin Stone

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