Let us consider the number of edges = x we know that a triangle will have 3 edges and a square will have 4 edges. Using this details we can form an equation. 3x + 4x = 8484 7x = 8484 x = 8484/7 = 1212 Then Number of square tiles = 1212/4 = 303 So there are 303 square tiles in the box. I hope the procedure is clear enough for your understanding. You can always use this method for solving similar problems.
