Concept: The question tests on Geometry(Triangles)
This is a pieces of a puzzle type of question, where we need to find an actual value
Statement 1: y = 2x
We do not have any specific information about x nor about the type of triangle.
Therefore Statement 1 Alone is Insufficient. Answer options could be B, C or E.
Statement 2: ∠DCA = 30
Again we do not have any information about the type of triangle, DCA is ,nor any information about any other angles.
Therefore Statement 2 Alone is Insufficient. Answer Options could be C or E
Combining Both Statements:
Same as the 2 statements. There is nothing that we can infer even after combining the 2 statements.
Therefore Both Statements together are Insufficient.