The radii of three concentric circles are in the ratio of 4 : 5 : 7. W – McqOptions

MCQOPTIONS

1.	The radii of three concentric circles are in the ratio of 4 : 5 : 7. What is the ratio of the area between the two inner circles to that between the two outer circles?
A.	4 : 7
B.	5 : 9
C.	3 : 8
D.	4 : 5
Answer» D. 4 : 5

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