Probability

Rolling to a Multiple of Three

Difficulty
xxx xxxxxxxxxx xxxx x xxxx xxx-xxxxx xxx, xxxxxxxx xxx xxxxx xxxx xxx xxxxxxx xxxxx xx x xxxxxxxx xx xxxxx. xxx xxxx xxxx xx xxxxx xxxx, xxx xxx xxxxxxx $x xxx xxxxx xxxx, xxxxxxxxx xxx xxxxx xxxx. xxxx xx xxxx xxxxxxxx xxxxx xxxxxx?

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