http://www.puzzleduniya.com/category/... - This video helps you to understand how to solve puzzle made of some letters within star shaped diagram. The logic is hidden within the diagram - a relational logic, the relation between the given letters and it's corresponding number.
Suppose a is the 1st letter of the series and it's number is 1, similarly z is the last one of the series and it's denoted as 26.
The two triangles in each star shape diagram with it's 3 letters positioned on 3 vertices. If we add the corresponding numbers for each triangle, then it becomes equal with the sum of the 3 vertices of the other triangle.
