_____ is the duplicate ratio of $3 a : 4 b$

9 a : 16 b

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\sqrt{3 a} : \sqrt{4 b}

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3 a^{2} : 4 b^{2}

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9 a^{2} : 16 b^{2}

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Solution

The correct option is D $9 a^{2} : 16 b^{2}$
The duplicate ratio of $a : b$ is $b : a$
$∴$ The duplicate ratio of $3 a : 4 b$ is $(3 a)^{2} : (4 b)^{2} = 9 a^{2} : 16 b^{2}$

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Similar questions

3 a - 4 b = 7

a b = 10

9 a^{2} + 16 b^{2}

12 a b + 9 a + 12 + 16 b =

The factor(s) of 12ab + 9a + 12 + 16b is/are:

\frac{a^{2} - 5 a}{3 a - 4 b} \div \frac{a^{2} - 25}{9 a^{2} - 16 b^{2}}

\frac{a (3 a + 4 b)}{a + 5}

1

0

Evaluate : $(3 a - \frac{1}{2}) (3 a - \frac{1}{2})$

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