Discussion of Question with ID = 473 under Alphabet-Number-Series

This is the discussion forum for this question. If you find any mistakes in the solution, or if you have a better solution, then this is the right place to discuss. A healthy discussion helps all of us, so you are requested to be polite and soft, even if you disagree with the views of others. The question and its current solution has also been given on this page.

This is a series of digits that has been written by randomly arranging 19 digits. How many consequetive pairs of numbers does it contain?

3 8 6 2 3 8 1 9 6 9 5 7 8 5 9 1 7 7 3

Soln.
Ans: b

At these locations: 2-3 ;7-8 ;