Examples train ticket in Czech examples

How do I translate train ticket into Czech?

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A train ticket costs 100 rubles.

Jízdenka na vlak stojí 100 rublů.

One honest babushka once told me that she bought a ticket and tried to board the train.

Jedna poctivá bábuška mi kdysi vyprávěla, že si koupila jízdenku a snažila se nastoupit do vlaku.