question_answer

What comes in place of the question mark (?) ? ? 18 S 21 P 24 N 27 M

A) W      

B)   T

C) 15                       

D)   14

E) None of these

Correct Answer: A

Solution :

Explanation: Option [a] is correct because in the given series letters and numbers take place alternately. Every next letter take place skipping 3, 2, 1 and 0 letters respectively in reverse order. Let us see: If you see the numbers, you find that every next number increases by 3. Rest of the options is incorrect because of the correctness of option [a].