Discussion of Question with ID = 314 under Alphabet-Number-Series

This is a series of digits and alphabets. How many pairs are such that the consecutive items are both numbers?

7 8 5 2 A 4 Z Y H W J 6 1 S T F 9 6 U 3

At these locations: 7-8 ;8-5 ;5-2 ;6-1 ;9-6 ;