SSC CGL 2024 Tier-I · 11 September 2024, Shift 1 · General Intelligence and Reasoning · Question 12 of 95

Text as printed on a candidate's response sheet for this shift; answer per SSC's tentative key as marked on that sheet. Solution last reviewed 10 September 2026.

Where this paper and its answers come from

SSC does not publish CGL question papers or a public answer key. The questions and options here are reproduced as printed on a candidate's own response sheet for this shift — the Commission's text, unchanged. Each answer is SSC's tentative key as marked on that sheet; SSC allowed challenges to it and never publishes a final key. The solutions are written by UnlockIAS.

Select the correct mirror image of the given figure when the mirror is placed at MN as shown.

Answer

Why

Correct — D. Rule: a mirror on a vertical line MN reverses the left-to-right order and flips every glyph left to right as well.

The figure reads y z v o n, so the image reads n o v z y from the left.

o and v are symmetric about a vertical axis and come back unchanged. n, z and y are not, so each of the three must appear back to front.

Option (d) is the one that flips all three: the n with its full-height stroke on the right of the arch, the z reversed, and the y with its tail curling to the right.

Why the others are wrong

(a)
The order is reversed and the z and y are flipped, but the n is reproduced as printed, with its full-height stroke still on the left. A mirror moves that stroke to the right.
(b)
Only the n is flipped here. The z stands the right way round and the y keeps its tail curling left, so two glyphs never entered the mirror.
(c)
Only the z is flipped. The n and the y are copied exactly as the figure prints them, which a vertical mirror cannot leave untouched.

Concept

A vertical mirror does two things at once, and the options are built so that one is done and the other is not.

First, the order reverses: what lies nearest the mirror ends up furthest from it, so y z v o n becomes n o v z y.

Second, each shape is itself flipped left to right. Glyphs with a vertical axis of symmetry — o and v here, and capitals such as A, H, M, T, U, W, X and Y — come back unchanged, which makes them useless for telling options apart. Check the ones that lack that symmetry.

The lower-case letters are what make this item hard: a flipped n and a flipped z are not letters at all, so there is nothing to read them as and you have to compare stroke by stroke. The y's tail splits the four options two against two, and the n then decides between the survivors.

Key facts

A vertical mirror reverses left-to-right order, so y z v o n is imaged as n o v z y.
Glyphs symmetric about a vertical axis, such as o and v, are unchanged by a vertical mirror.
In the mirror image of a lower-case n, the full-height stroke moves from the left of the arch to the right.

Study next

Water images, where the mirror line is horizontal instead of verticalMirror images of figures made from arrows and shapes rather than lettersIdentifying which capital letters survive a vertical mirror unchanged

Common traps

Reversing the order of the letters and stopping there, without flipping each glyph
Deciding on o and v, which look identical in every option
Accepting a normal n in the image because no other letter resembles a flipped one

The mirror-at-MN stem also runs at 9 Sep 2024, 9:00, Reasoning Q.10 and Q.13, and at 9 Sep 2024, 12:30, Reasoning Q.2 and Q.3.

Related PYQs

No directly related past PYQ was found.