Question

A certain 5-digit combination lock can be reset with a new combination. The lock uses numbers from 1 to 6. After a friend accidentally resets it to an unknown combination, what is the probability that you guess the combination that opens the lock?

A.
100,000

B.
7,776

C.
1100,000
D.
17,776

Answer 1

Answer: 1/7,776

Explanation:

Answer 2

1 / 7776

Explanation:

The probability of guessing 1 number in any of the 5 positions is 1/6 .

So the probability of doing this 5 times = (1/6)^5 = 1 / 7776.