What is the reciprocal ratio of $121 x^{3} : 25 x^{3}$

25 x^{3} : 121 x^{3}

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5 x^{3} : 11 x^{3}

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11 x^{3} : 5 x^{3}

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25 x^{2} : 121 x^{2}

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Solution

The correct option is C $25 x^{3} : 121 x^{3}$
The reciprocal ratio of $a : b$ is $b : a$
$∴$ reciprocal ratio of $121 x^{3} : 25 x^{3}$ is $25 x^{3} : 121 x^{3}$

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