Question 9

# In the following question, select the related number from the given alternatives.9 : 81 :: 11 : ?

Solution

The logic here is

9$$^2$$ = 81 $$\longrightarrow\$$ $$\text{first number}^2=\text{second number}$$

Similarly,  $$\text{third number}^2=\text{fourth number}$$

$$\therefore\$$Fourth number = 11$$^2$$ = 121

Hence, the correct answer is Option C