Question

Which of the following will replace the question mark?

• A. I, H
• B. F, K
• C. D, B
• D. S, K

Answer 1

The correct option is C D, B

$7\times 9=63,6\to F,3\to C$.
$4\times 9=36,3\to C.6\to F$.
$Similarly,7\times 6=42,4\to D,2\to B$.