Question

A letter combination lock contains five disks on a common axis. Each disc is divided into six sectors with different letters on each sector. The lock can open only if each of the disks occupies a certain position with respect to the body of the lock. The probability that the lock will open for an arbitrary combination of the letters, is

• A. $\frac{1}{6!}$
• B. $\frac{1}{6^5}$
• C. $\frac{1}{5^6}$
• D. $\frac{1}{30}$

Answer 1

Answer: (B)

Correct answer is (b) $\frac{1}{6^5}$