Question

Detective Moustache is trying to decode the pin of a criminal's phone. The pin contains the digits 1, 2, 3, 4, 5 such that each digit appears only once. If the first digit of the pin is 5 and the last digit is 2, what could the pin be?

• A. 5 4 3 1 2
• B. 5 4 1 3 2
• C. 5 3 4 1 2
• D. 5 1 3 4 2

Answer 1

The correct option is B 5 4 1 3 2

Writing the names of the first five digits, we get:

$One,Two,Three,Four,Five$

Now, arranging these number names in their alphabetic order, we get:

$Five,Four,One,Three,Two$

Hence, the correct pin of the criminal's phone is:
$54132$