52, 51, 48, 43, 34, 27, 16

by
Question:
52, 51, 48, 43, 34, 27, 16

[A].

27

[B].

34

[C].

43

[D].

48

Answer: Option B

Explanation:

Subtract 1, 3, 5, 7, 9, 11 from successive numbers.

So, 34 is wrong.