If ${log}_{5} y = - 2$ , then $y$ is equal to_____

25

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\frac{1}{25}

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5

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\frac{1}{5}

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Solution

The correct option is B $\frac{1}{25}$
${log}_{5} y = - 2$
$\Rightarrow y = 5^{- 2}$
$\Rightarrow y = \frac{1}{25}$
Hence, B is the correct option.

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Question 1

$\frac{2}{5} \times 5 \frac{1}{5}$ is equal to
(a) $\frac{26}{25}$
(b) $\frac{52}{25}$
(c) $\frac{2}{5}$
(d) 6

\frac{2}{5} \div \frac{8}{25} = \frac{8}{25} \div \frac{2}{5}

1

0

P (x) = \frac{1 + 5 x}{1 - 5 x} & Q (x) = \frac{1 - 5 x}{1 + 5 x},

\frac{P (x)}{Q (x)}

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