Question 152

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

Solution

Expression = $$\frac{1}{9}:\frac{1}{81},\frac{1}{13}:?$$

The pattern followed is = $$\frac{1}{n}:\frac{1}{n^2}$$

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

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

=> Ans - (A)

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