Question
The areas of two circular field are in the ratio 16 : 49. If the radius of the latter is 14 m, then what is the radius of the
former ?
Answer: Option B
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`(pi R_1^2)/(pi R_2^2) = 16/19`
`hArr (R_1^2)/(14 xx 14) = 16/49`
`hArr R_1^2 = (14 xx 14 xx 16)/(49)`
`hArr R_1 = (14 xx 4)/(7)`
`hArr R_1 = 8 m.`
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