Directions : Read the following questions carefully and choose the right answer. How many pairs of letters are there in the word ‘COMMUNICATION’ which have as many letters between them in the word as in alphabetical series?

Step-by-step solution

C O M M U N I C A T I O N 3 15 13 13 21 14 9 3 1 20 9 15 14 Possible Pairs: C O M M U N I 3 15 13 13 21 14 9 M M U N I C A T 13 13 21 14 9 3 1 20 O N 15 14 N I C A T I 14 9 3 1 20 9 M M U N I 13 13 21 14 9 And, O M M 15 13 13 Hence, the correct answer is option D.