If ORBIT is coded BEOVG, then how is PLANET coded? / 1. CYNARG

2. CONAVG

3. CYNAVG

4. XONARG

1. CYNARG

Step-by-step explanation:

This a example of Caesar's Cipher, in which each letter in the original word leads to a ciphered letter according to the following equation:

In which C is the index of the Ciphered letter in the alphabet, P is the index of the original letter and o is the offset.

Finding the offset:

O is coded B

O is the 15th letter in the alphabet, so .

B is the 2nd letter in the alphabet, so

So

PLANET:

P

P is the 16th letter in the alphabet.

So P is coded C.

L

L is the 12th letter in the alphabet:

L is coded Y(25th letter in the alphabet)

A

A is the 1st letter in the alphabet

A is coded N

N

N is the 14th letter in the alphabet

N is coded A

E

E is the 5th letter in the alphabet

E is coded R

So the correct answer is:

1. CYNARG