Question 8

In the following question, select the related number from the given alternatives.
11 : 121 :: 18 : ?

Solution

The logic here is

11$$^2$$ = 121 $$\longrightarrow\ $$ $$\text{first number}^2=\text{second number}$$

Similarly,

18$$^2$$ = 324

$$\therefore\ $$18 is related to 324 in the same way 11 is related to 121.

Hence, the correct answer is Option A

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In the following question, select the related number from the given alternatives.11 : 121 :: 18 : ?