If in the English alphabet, every even letter beginning from B is replaced by an odd number beginning with 3, which letter/number will be the third to the right of the tenth number/letter counting from your right?

Option 4 : None of these

Logic: Change every even letter in the alphabet starting from "B" to a successive odd number starting from 3. Now, find the answer to the question.

Step 1:

• Every even letter starting from B is shown in the Bold.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Step 2

• Now this even letter starting from B is replaced with an odd number beginning with 3.

After arranging alphabets as per the condition the obtained arrangement will be:

A 3 C 5 E 7 G 9 I 11 K 13 M 15 O 17 Q 19 S 21 U 23 W 25 Y 27.

The tenth element from the right end is "Q".

The third to the right of the tenth number/letter counting from the right will be:

⇒ "21".

Hence the obtained number is "21".

Therefore, the correct answer will be "Option 4 : None of these".