“Only 1 In 1000 Can Solve“ The Viral 1 + 4 = 5 Puzzle. The Correct Answer Explained

This problem was shared on Facebook with the claim that only one in a thousand could figure it out. It went viral and generated over 3 million comments. Here is the problem. If 1 4 = 5, 2 5 = 12, 3 6 = 21, what is 8 11 = ? This video presents what many people believe to be the correct answer. Blog post (text explanation and an extra proof): Facebook post that went viral Telegraph coverage http://www.t