Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fifth term.

$$7 : 52 :: 11 : ? : 9 : 84$$​​

Correct option is B

Given ​$$7 : 52 :: 11 : ? : 9 : 84$$   

Logic - second number = square of first number + 3
first pair
square of 7 + 3 = 49 + 3 = 52
third pair
square of 9 + 3 = 81 + 3 = 84
similarly,
? = square of 11 + 3 = 121 + 3 = 124
so correct answer is 124.