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5. HE MAKES 4 CIGARETTES WITH THE 16 BUTTS. AFTER SMOKING THE 4 CIGARETTES, HE WILL HAVE 4 MORE BUTTS TO MAKE ANOTHER CIGARETTE 5. HE MAKES 4 CIGARETTES WITH THE 16 BUTTS. THEN HE SMOKES THEM AND HAS 4 MORE BUTTS TO MAKE ANOTHER CIGARETTE TOM WINS AGAIN. IN THE FIRST RACE TOM RAN 100 METERS IN THE TIME IT TOOK HARRY TO RUN 95 METERS. SO IN THE SECOND RACE WHEN HARRY IS AT THE 95 METER MARK TOM WILL ALSO BE THERE (SINCE 100 - 5 = 95). SINCE TOM IS FASTER HE WILL PASS HARRY IN THE LAST 5 METERS OF THE RACE 5, FOUR FROM THE ORIGINAL 16 BUTTS AND ONE MORE FROM THE BUTTS OF THOSE CIGARETTES WHEN HE SMOKES THEM