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 2/3 the area of greater circle.

if both statement I and II together are necessary to answer the question.

if statement I alone is sufficient to answer the question.

if statement II alone is sufficient to answer the question.

if both statement I and II together are not sufficient to answer the question.

If C1 and C2 are the circumferences of the outer and inner circles res

1.	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 2/3 the area of greater circle.
A.	if statement I alone is sufficient to answer the question.
B.	if statement II alone is sufficient to answer the question.
C.	if both statement I and II together are necessary to answer the question.
D.	if both statement I and II together are not sufficient to answer the question.
Answer» C. if both statement I and II together are necessary to answer the question.

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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 2/3 the area of greater circle.

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