Maths wizard Arjun Rajyagor has been crowned as Alan Sugar's first Junior Apprentice, earning himself a prize fund of £25,000.
The 17-year-old beat fellow finalists Zoe Plummer, Tim Ankers and Kirsty Cleaver to claim the crown.
In the last task of the series contestants had to create and market a brand of bottled water.
Speaking about the winner, Sugar said: "Arjun has that natural business flair combined with intelligence that some people are born with - you can't learn it."
"I know that Arjun is going to become the best at whatever he wants to do and I will be here for support all the way."
Arjun described his win as "mind-blowing", saying that the show was "the most amazing experience" of his life.
