Question

If C1 and C2 are the circumferences of the outer and inner circles respectively. What is C1 : C2?
(I) The two circles are concentric.
(II) The area of the ring is $\frac 23$ the area of greater circle.

• A. Statement I alone is sufficient to answer the question.
• B. Statement II alone is sufficient to answer the question.
• C. Both statement I and II together are necessary to answer the question.
• D. Both statements I and II together are not sufficient to answer the question.

Answer 1

Answer: (B)

Statement II alone is sufficient to answer the question.

Answer 2

The correct option is (B): Statement II alone is sufficient to answer the question.