KöMaL 2016 K521
In a running race, each participating school entered four runners. Andrew, Ben, Charlie and Dennis were the runners from one school. Andrew finished in the best place out of the four: he finished in the first quarter of all runners participating. Ben came in 18th, followed by Charlie, who was beaten by more than four times as many runners as Andrew. Dennis came in last of the four of them: he finished in the 59th place. How many schools entered students in the running race?
Official text KöMaL. Quoted with source.
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