Comprehension
In a language laboratory, students were given an interesting puzzle involving the word "ELECTROCARDIOGRAPH." The teacher explained that such exercises not only test logical skills but also sharpen attention to detail. According to the challenge, the word had to undergo a series of transformations. First, the class was asked to take the first half of the letters, reverse their order and make the arrangement of letters look quite different from the original. Next, the students were told to identify the last but one letter of the original word and place it at the very beginning, a step that changed the opening appearance of the sequence completely. Finally, as a finishing touch, they had to add the letter 'S' at the end. Following these steps carefully would lead them to the correct transformed word, and only those who adhered to each condition in the exact order could solve the puzzle successfully. (150 words)
Question: 1

Which letter will be exactly in the middle?

Show Hint

For word and letter-arrangement puzzles: \begin{itemize} \item Track positions with indices to avoid mistakes. \item Carefully distinguish between {adding} a letter and {moving} a letter. \item For finding the middle letter of an odd-length word of \(n\) letters, use position \(\frac{n+1}{2}\). \end{itemize}
Updated On: Jul 3, 2026
  • \(L\)
  • \(R\)
  • \(D\)
  • \(E\)
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The Correct Option is D

Solution and Explanation

Step 1: The final word has 19 letters (18 plus the added \(\texttt{S}\)), so its middle letter sits at position \(10\), right after the \(\texttt{P}\) that was moved to position 1.
Step 2: Positions 2 to 10 are exactly the reversed first half of \(\texttt{ELECTROCARDIOGRAPH}\), that is, the reverse of \(\texttt{ELECTROCA}\). Reversing a block always sends its last slot to what was the block's own first letter, so the 9th (last) letter of this reversed block equals the original first letter of the word.
Step 3: The first letter of \(\texttt{ELECTROCARDIOGRAPH}\) is \(\texttt{E}\), so the middle letter must be \[ \boxed{E} \]
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Question: 2

How many vowels will be to the left of the middle letter?

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When counting vowels or consonants relative to a position: \begin{itemize} \item First locate the exact position (index) of the letter in question. \item Then carefully list and count only those letters strictly to its left or right, as required. \end{itemize}
Updated On: Jul 3, 2026
  • \(2\)
  • \(1\)
  • \(4\)
  • \(3\)
Show Solution

The Correct Option is D

Solution and Explanation

The nine letters to the left of the middle position are \(\texttt{P, A, C, O, R, T, C, E, L}\). Checking each one, only \(\texttt{P, C, R, T, C, L}\) are consonants, six letters in all, so the remaining three, \(\texttt{A}\), \(\texttt{O}\), and \(\texttt{E}\), must be the vowels. This confirms the answer as \(\boxed{3}\).
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Question: 3

Which of the two vowels will be adjoining each other?

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To find adjoining vowels, scan the word letter by letter and check each pair of consecutive letters to see if both are vowels.
Updated On: Jul 3, 2026
  • IE
  • IO
  • AE
  • AO
Show Solution

The Correct Option is B

Solution and Explanation

Tag every letter of the coded word as a vowel or a consonant and simply look for a spot where two vowel tags appear one after the other. Going through \(\texttt{PACORTCELERDIOGRAH}\) this way, the only side by side vowel pair found is \(\texttt{I}\) and \(\texttt{O}\), so option (b), \(\texttt{IO}\), is correct.
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Question: 4

Which vowel will have a consonant to the left but a vowel to the right of it?

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When a condition involves both neighbours of a letter, write the word with indices and check each vowel with its immediate left and right neighbours.
Updated On: Jul 3, 2026
  • \(I\)
  • \(O\)
  • \(A\)
  • \(E\)
Show Solution

The Correct Option is A

Solution and Explanation

Convert the word into a string of V's and C's, then look for the pattern consonant, vowel, vowel (C V V); the middle vowel in that pattern is the one with a consonant on its left and a vowel on its right. In \(\texttt{PACORTCELERDIOGRAH}\), this pattern occurs only at \(\texttt{D-I-O}\), so the answer is \(\texttt{I}\), option (a).
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Question: 5

Name the letters sandwiched between two vowels.

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For “sandwiched” letters, search for three-letter blocks where the first and third are vowels and the middle one is a consonant.
Updated On: Jul 3, 2026
  • R and T
  • C and L
  • R and L
  • D and R
Show Solution

The Correct Option is B

Solution and Explanation

Go consonant by consonant through \(\texttt{PACORTCELERDIOGRAH}\) and check whether both its neighbouring letters are vowels. Only two consonants qualify this way, the \(\texttt{C}\) sitting between \(\texttt{A}\) and \(\texttt{O}\), and the \(\texttt{L}\) sitting between the two \(\texttt{E}\)'s. So the answer is C and L, option (b).
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Question: 6

Which letter is prefixed to the word after the first half is reversed?

Show Hint

“Prefixed” means a letter is placed at the {beginning} of the word. When it comes from within the word, treat it as moved (not duplicated) unless stated otherwise.
Updated On: Jul 3, 2026
  • G
  • P
  • H
  • S
Show Solution

The Correct Option is B

Solution and Explanation

Step 1: The base word is \(\texttt{ELECTROCARDIOGRAPH}\), which has \(18\) letters.
Step 2: Counting backward from the end, the 2nd-last letter (position \(17\)) is \(\texttt{P}\).
Step 3: This is the letter attached to the front once the first half is reversed.
\[ \boxed{\texttt{P}} \]
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