You are given a question followed by two statements numbered I and II.
You have to decide whether the data provided on the statements are sufficient to answer the question.
Question: what is the value of 'x'?
Statements:
I. x+ 2y = 6
II. 3x + 6y = 18

A

Statement I alone is sufficient

B

Both statements I and II together are not sufficient

C

Both statements I and II together are necessary

D

Statement II alone is sufficient