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The document summarizes problems from the second day of the 2007 Central American Olympiad in Venezuela. The problems include: 1) Showing that all words in a remote language using only 7 letters are synonymous under given transformation rules. 2) Determining how many three-digit numbers end in the product of their digits. 3) Proving that if BD is parallel to AC in a construction involving circles and tangents, then G is the centroid of triangle ABP.

Author

Okla

Language

EN