Fun Riddles: How Many Runners Are In Mark’s Academy?

Have fun with this simple and straight forward riddle. Read the puzzle carefully before answering.


In a training academy, Mark is the 50th fastest and the 50th slowest runner.

Assuming no two runners, run at the same speed, how many runners are in Mark’s academy?

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Answer: There are 99 runners in Mark’s academy.

This is tricky. If Mark is the fiftieth fastest runner, he would be number 50 in the sequence 1, 2, 3…50.
To be the fiftieth slowest, he’d have to be number 50 in the sequence 50, 51, 52…99, since there are fifty numbers from 50 to 99 inclusive.

Hence, the total number of runners are 99.

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