Question 7
Agent Ethan enters a secret base. To open a lock made of three circular parts, he must align the correct letter or number from each part at the position marked “Code”. Each part has the letters or numbers shown. How many rotations are needed to guarantee opening the lock?
Editorial convention: one trial means testing one complete aligned three-part code, as in the source answer.
Editorial convention: one trial means testing one complete aligned three-part code, as in the source answer.