In the following question three squares A, B and C are given which contain four figures/ numbers related to each other. The figures / numbers in the first two squares are given as examples and bear a certain relationship to each other within the square. This relationship can be established /calculated vertically, horizontally or diagonally. Depending on this relationship between the figures/numbers in the first two squares, find out what should come in place of the question mark in the third square - C.



A) 27

B) -13

C) 6

D) -27

Correct answer:
D) -27

Description for Correct answer:
Square A => 92 - 32 = 60;

72 - 52 = 20

Square B => 76.5 - 16.5 = 60;

56.5 - 36.5 = 20

Square C => ? = 33 - 60 = -27


Please provide the error details in above question