PATTERN followed is that both the numbers are subtracted and square the value of resultant.27 @ 22 = 25→ (27 - 22) = 5(5)2 = 2539 @ 33 = 36→ (39 - 33) = 6(6)2 = 36Similarly;25 @ 22 = ?(25 - 22) = 3(3)2 = 9Hence, CORRECT ANSWER is 9.