Given a group of 680 people, will 2 people have the exact same initials for both their first and last names? Explain the answer.© BrainMass Inc. brainmass.com June 4, 2020, 3:21 am ad1c9bdddf
Assuming that there are 26 letters in the alphabet (which is the case for the English alphabet) then there are 676 (or 26 x 26) possible combinations of first and last name initials i.e.:
1 2 25 26
1 A with A B with A ....... Y with A Z with A
2 A with B B with B ....... Y with B Z with B
3 A with C B ...
A step-by-step explanation of the pigeonhole principle with an example.