Select the option that is related to the fifth number in the same way as the first number is related to the second number and the third number is related to the fourth number.
35 : 1225 :: 55 : 3025 :: 75 : ?

Correct option is D

Given: 35 : 1225 :: 55 : 3025 :: 75 : ?
Logic: 2nd number is the square of 1st number.
35 : 1225 → $$35^2$$​ = 1225
55 : 3025 → $$55^2$$​ = 3025
similarly,
75 : ? → $$75^2$$​ = 5625
Correct answer is (d) 5625