A bank requires that its customers create a PIN to access their account. The PIN must be 2 letters followed by 2 numbers. How many unique PINs are there? A 520 C 67,600 B 10,000 D 456,976
1 Answer
May 16, 2018
Answer is C. 67600
Explanation:
There are
Similarly we can have each number in
In all we can have
Hence answer is C. 67600.