Question

The diagram shows a door lock.

A
1
B
2
С
3
The code is a letter followed by a number.
a) How many different codes are there altogether?
b) I know that the correct code begins with C.
I press C, then I guess the single digit number.
What is the probability that I open the door?
Give your answer as a fraction.

Answer 1

1/3

Explanation:

There are 3 letters and 3 numbers so the answer should be 1/3.

Answer 2

I think B is correct