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In a certain code, MONDAY is written as NNOCBX. How is FRIDAY coded?
GSJEBZ
GRIEBZ
GSJEBY
GQJCBX
GQJCBX
Apply the alternating +1 and -1 shift pattern starting from the first letter (M+1, O-1, N+1, D-1, A+1, Y-1).
Apply the alternating +1 and -1 shift pattern starting from the first letter (M+1, O-1, N+1, D-1, A+1, Y-1).
Analyze the pattern in MONDAY
M(+1)=N, O(-1)=N, N(+1)=O, D(-1)=C, A(+1)=B, Y(-1)=X. The pattern is +1, -1, +1, -1, +1, -1.
Apply pattern to FRIDAY
F(+1)=G, R(-1)=Q, I(+1)=J, D(-1)=C, A(+1)=B, Y(-1)=X. Result: GQJCBX.
A is wrong because it applies incorrect shifts; B is wrong because it fails to maintain the alternating sequence correctly; C is wrong because it uses an incorrect final character.
D is correct because the sequence follows a consistent alternating +1 and -1 shift for each letter of the word.
Whenever you encounter a word code, immediately write the numerical position of letters (A=1, B=2...) to quickly identify the shift value (e.g., +1, -2, +3).
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