The areas of two circular fields are in the ratio of 25: 64, respectively. If the radius of the latter is 16 m, then what is the radius of the former? [SBI Associate (Clerk) 2014] |
A) 14 m
B) 10 m
C) 6 m
D) 18 m
E) 8 m
Correct Answer: B
Solution :
Let the radius of the former be r. |
Then, \[\frac{\pi {{r}^{2}}}{\pi {{.16}^{2}}}=\frac{25}{64}\]\[\Rightarrow \]\[r=\frac{5}{8}\times 16=10m\] |
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