How many 4s are there in the following number sequence which are immediately preceded by 6 and immediately followed by 5?

465946451354623164589

Two

The correct answer is Option (1) → Two

We look for the pattern 6-4-5, where 4 is immediately preceded by 6 and immediately followed by 5, in the sequence:

465946451354623164589

Scanning the digits carefully, the pattern 6-4-5 appears twice.