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AIMO 2021 Primary 2 — Preliminary (Open Trial 1) Question 18

AIMO · AIMO 2021 Primary 2 — Preliminary (Open Trial 1)

Question 18

Christy has some \$5, \$2 and \$1 coin. She has 4 coins of each type. How many different face values can she form using those coins?

Answer: ____________________ face.

Editorial convention: use at least one coin and count positive amounts.