Choose the alternative that best replaces the question mark(?) in the given figure.

8	9	10
6	5	4
25	?	19
23	27	21

Correct option is B

Given:

Concept:
The pattern followed is, Column wise:
(First Number × Second Number) = (Third Number + Fourth Number)
Calculation:
For Column 1:
6 × 8 = 25 + 23
48 = 48
For Column 3:
10 × 4 = 19 + 21
40 = 40
Similarly,
For Column 2:
9 × 5 = ? + 27
45 – 27 = ?
? = 18
Therefore, the correct answer is 18.