The question presents a coding problem where a word is transformed based on a specific rule. We need to decipher this rule.
By comparing "SPRING" and "GNIRPS", we observe that the letters are exactly the same but arranged in the reverse order. The last letter 'G' becomes the first, 'N' becomes the second, and so on, until the first letter 'S' becomes the last.
Therefore, the coding rule is the reversal of the word.
We need to apply the identified reversal rule to the word "SISTER".
The reversed word "RETSIS" matches Option D.
Replace the question mark with an option that follows the same logic applied in the first pair. NP:
NP : 24 :: TV: ??
Replace the question mark with an option that follows the same logic applied in the first pair.
TWENTY: EWTYTN :: EIGHTY : ??