He reigned how many years?

Claude Mariottini has posted a thought-provoking article on a textual problem with 1 Sam. 13:1 and the substantially different ways English translations render the passage. Consider:

The New International Version (NIV) translates 1 Samuel 13:1 as follows:
Saul was thirty years old when he became king, and he reigned over Israel forty-two years.

The New American Standard Bible translates as follows:
Saul was forty years old when he began to reign, and he reigned thirty-two years over Israel.

The New English Bible translates as follows:
Saul was fifty years old when he became king, and he reigned over Israel for twenty-two years.

Which is correct? Read Dr. Mariottini's article and decide for yourself.