Correct option is D
In this question following logic is followed-
(1st row + 2nd row) × 2 = 3rd row
(4 + 5) × 2 = 9 × 2 = 18
And
(5 + 1) × 2 = 6 × 2 =12
Similarly,
(4+?) × 2 = 32
(4+?) = 16
? = 16 – 4
? = 12
Correct answer is (d) 12.






