ELECTROCARDIOGRAPH Word Puzzle Solution

This puzzle involves transforming the word "ELECTROCARDIOGRAPH" through a series of specific steps to determine which pair of vowels becomes adjacent in the final sequence. Let's break down the transformation process step by step.

Analyzing the Original Word

The original word is ELECTROCARDIOGRAPH. It contains $N=17$ letters.

The letters are: E, L, E, C, T, R, O, C, A, R, D, I, O, G, R, A, P, H.

The vowels in the original word are: E, E, O, A, I, O, A.

Step 1: Transforming the First Half

The instruction states: "take the first half of the letters, reverse their order and make the arrangement of letters look quite different from the original."

• The word has 17 letters. When splitting into halves, the first half typically takes the larger portion if the total is odd. So, the first half consists of the first $\lceil N/2 \rceil = \lceil 17/2 \rceil = 9$ letters.
• The first 9 letters are: ELECTROCA.
• The remaining letters are the last $17 - 9 = 8$ letters: RDIOGRAPH.
• Reversing the first half (ELECTROCA) gives: ACORTCELE.
• The word is then reconstructed by placing this reversed sequence at the beginning, followed by the rest of the original word.

Word after Step 1: ACORTCELE + RDIOGRAPH = ACORTCELERDIOGRAPH.

Step 2: Relocating the Last but One Letter

The instruction is: "identify the last but one letter of the original word and place it at the very beginning".

• The original word is ELECTROCARDIOGRAPH.
• The last letter is 'H'.
• The last but one letter is 'P'.
• This letter 'P' is now placed at the very beginning of the word obtained after Step 1 (ACORTCELERDIOGRAPH).

Word after Step 2: P + ACORTCELERDIOGRAPH = PACORTCELERDIOGRAPH.

Step 3: Appending the Final Letter

The final instruction is: "add the letter ‘S’ at the end".

• The word from Step 2 is PACORTCELERDIOGRAPH.
• Adding 'S' to the end results in the final transformed word.

Final Transformed Word: PACORTCELERDIOGRAPH S.

Identifying Adjoining Vowels

Now, let's examine the final transformed word: PACORTCELERDIOGRAPH S.

The vowels in this word are at the following positions (starting from 1):

• A (position 2)
• O (position 3)
• E (position 7)
• E (position 8)
• E (position 9)
• A (position 11)
• I (position 13)
• O (position 14)
• A (position 17)

Let's check which vowels are next to each other:

• The letters at positions 2 and 3 are 'A' and 'O', forming the pair AO.
• The letters at positions 7 and 8 are 'E' and 'E', forming the pair EE.
• The letters at positions 13 and 14 are 'I' and 'O', forming the pair IO.

The question asks which *of the two vowels* will be adjoining each other, and presents options including AO. Based on the transformations, the vowels 'A' and 'O' become adjoining each other.