Sentence: "Reflections are clearer in calm waters."If each letter is mirrored using alphabetical symmetry (A↔Z, B↔Y...), what is the 2nd etter of the 6th word after mirroring?

Correct — D.
Rule: mirror pairs add up to 27 (A1↔Z26, B2↔Y25), so the letter at position n becomes 27 − n.

Words: Reflections(1) are(2) clearer(3) in(4) calm(5) waters(6).
2nd letter of waters: a, position 1.
27 − 1 = 26 → z → option (d).

Why the others are wrong

• (a)
  d — d is the mirror of w, the 1st letter of waters (23 + 4 = 27). The question asks for the 2nd letter, a, which becomes z.
• (b)
  x — x mirrors c (3 + 24 = 27), and waters has no c. The letter c starts clearer and calm, the 3rd and 5th words, not the 6th.
• (c)
  y — y is the off-by-one slip 26 − n: a (1) → 25 = y. Mirror pairs sum to 27, so a becomes 26, which is z.

Alphabet mirroring pairs the first letter with the last, the second with the second-last, and so on: A↔Z, B↔Y, C↔X, down to M↔N. Every pair adds up to 27, so position n becomes 27 − n.

Mirroring changes letters, not word order. The 6th word is still waters, and letter by letter it becomes dzgvih. You need only its 2nd letter, so mirror that one letter and stop.

Key facts

• Mirror pairs sum to 27: A↔Z, B↔Y, C↔X … M↔N.
• waters mirrored letter by letter is dzgvih.
• The sentence's six words in order: Reflections, are, clearer, in, calm, waters.

Common traps

• Using 26 − n instead of 27 − n, which turns a into y
• Mirroring the 1st letter of waters instead of the 2nd

No directly related past PYQ was found.