A train leaves Moscow for St. Petersburg every 7 hours, on the hour. Show that on some

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A train leaves Moscow for St. Petersburg every 7 hours, on the hour. Show that on some days it is possible to catch this train at 9 a.m.

Whenever there is a 9 a.m. train, Ivan takes it to visit his aunt Olga. How often does Olga see her nephew?

Discuss the corresponding problem involving the train to Vladivostok, which leaves Moscow every 14 hours.

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A Concise Introduction To Pure Mathematics

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Authors: Martin Liebeck

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A train leaves Moscow for St. Petersburg every 7 hours, on the hour. Show that on some

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A Concise Introduction To Pure Mathematics

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