Question : Direction: In the following question, select the related number from the given alternatives.

$\frac{1}{9} : \frac{1}{81} : : \frac{1}{13} : \;?$
Option 1: $\frac{1}{169}$
Option 2: $\frac{1}{125}$
Option 3: $\frac{1}{120}$
Option 4: $\frac{1}{127}$

Question

Question : Direction: In the following question, select the related number from the given alternatives.

$\frac{1}{9} : \frac{1}{81} : : \frac{1}{13} : \;?$

Option 1: $\frac{1}{169}$

Option 2: $\frac{1}{125}$

Option 3: $\frac{1}{120}$

Option 4: $\frac{1}{127}$

Team Careers360 · Accepted Answer

Correct Answer: $\frac{1}{169}$

Solution : Given:

$\frac{1}{9} : \frac{1}{81} : : \frac{1}{13} : \;?$

$\frac{1}{9}^2=\frac{1}{81}$

The square of the first number is equal to the second number.

Similarly, the missing number is

$\frac{1}{13}^2=\frac{1}{169}$

Hence, the first option is correct.

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Question : Direction: In the following question, select the related number from the given alternatives.

$\frac{1}{9} : \frac{1}{81} : : \frac{1}{13} : \;?$
Option 1: $\frac{1}{169}$
Option 2: $\frac{1}{125}$
Option 3: $\frac{1}{120}$
Option 4: $\frac{1}{127}$