The Correct Answer and Explanation is:
The correct answer is WX.
The sequence presented is CD, HI, MN, RS. To solve this puzzle, we must identify the pattern governing the progression from one pair of letters to the next. The solution involves a two-part pattern.
First, observe the letters within each pair. In every case, the two letters are consecutive in the English alphabet. C is immediately followed by D, H is followed by I, M is followed by N, and R is followed by S. This initial pattern tells us that the correct answer must also be a pair of consecutive letters. All the provided options (YZ, VW, UV, WX) fit this part of the rule, so we must look deeper.
The second part of the pattern lies in the gap, or the number of skipped letters, between the end of one pair and the beginning of the next. Let’s analyze these transitions:
- From CD to HI: The first pair ends with D. The letters following D in the alphabet are E, F, and G. These three letters are skipped, and the next pair begins with H.
- From HI to MN: The second pair ends with I. The letters following I are J, K, and L. Again, exactly three letters are skipped before the next pair starts with M.
- From MN to RS: The third pair ends with N. The letters following N are O, P, and Q. Consistently, three letters are skipped, and the sequence continues with the pair starting at R.
The established rule is clear: each element is a consecutive letter pair, and there is a three-letter alphabetical gap between each pair.
To find the next letters in the sequence, we apply this rule to the last given pair, RS. The pair ends with the letter S. We must skip the next three letters in the alphabet, which are T, U, and V. The letter immediately following V is W. Therefore, the next pair must begin with W. Since each pair consists of two consecutive letters, the letter following W is X. This gives us the final pair, WX.
