Based on the given criteria, the account numbers to be deleted are:
827820-232562-87651487
827820-047889-45577278
827820-650953-14026405 .
Among the provided account numbers, the ones that should be deleted based on the given criteria (having two or fewer "5"s) are:
827820-232562-87651487
827820-015187-35678354
827850-204502-78571872
827820-650953-14026405
Step-by-step explanation:
827820-232562-87651487: This account number has four "5"s, which is more than the allowed two, so it should be deleted.
827820-047889-45577278: This account number has three "5"s, which is within the allowed limit, so it should be retained.
827820-451211-91818238: This account number has three "5"s, which is within the allowed limit, so it should be retained.
827820-015187-35678354: This account number has two "5"s, which is within the allowed limit, so it should be retained.
827850-204502-78571872: This account number has two "5"s, which is within the allowed limit, so it should be retained.
827820-650953-14026405: This account number has two "5"s, which is within the allowed limit, so it should be retained.
The account numbers 827820-232562-87651487, 827820-015187-35678354, 827850-204502-78571872, and 827820-650953-14026405 should be deleted based on the criteria provided.