Guys i urgently need advice. I have decided to pursue a career in the business world and now have the option of majoring in either economics or management with marketing as a minor, which should i choose?which has better career prospects in a country like nigeria?

Both courses have equal prospect in Nigeria. You career trajectory will be determined by what kind of role you get as your first job after graduation. You'll have a good chance of ending up in a promising role in a great organisation when you graduate with a very good grade. Economics is a bit more numerate than management. You choose a course that will play to your natural strenghts where you'll be more likely to graduate with a very good grade.

thanks bro.

Since you have decided to pursue a career in business. I strongly advice you go for Management. The knowledge and skill will help your business a great deal and after graduation, if lucky, you have the opportunity of a promising employment in leadership position within a short time.
Do you know the concept of work and business?
Management will expose you to this and how to manage your time to suceed in both.