The pattern followed in the given table is: First term × Second term + (Second term )2= Third term Now we apply the pattern on each column: Column 1) 18 × 7 + (7)2 = 175 126 + 49 = 175 175 = 175 Column 2) 21 × 15 + (15)2 = 540 315 + 225 = 540 540 = 540 Column 3) 12 × 11 + (11)2 = ? 132 + 121 = ? 253 = Answer