Dangote donates n1 2bn building buk business school

I think there may be a mistake here.

Aliko Dangote, the Nigerian business magnate, has not donated a N1.2 billion building to the Business School of the University of Ibadan, as far as I know.

However, it's possible that you may be referring to a different news article or report. Could you please provide more context or clarify which news source you got this information from?

If you meant to say that Dangote donated a building to a different institution or organization, please feel free to share the correct information, and I'll be happy to help you verify it!