Prof. Ahmed Kutama, the Returning Officer, declared the result at the collation centre in Kafinhausa Local Government Area.
He said the APC candidate defeated his closest rival, Garba Muhammad Tambale, of the Peoples Democratic Party (PDP), who polled 8,612 votes.
The electoral officer declared Adamu the winner, having secured the highest number of votes.
The third contestant was Usman Isyako of the Allied Peoples Movement (APM) who secured 72 votes. (NAN)