SSC CGL 2024 Tier-I · 10 September 2024, Shift 2 · General Intelligence and Reasoning · Question 8 of 100

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 6 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.

Answer

Why

Correct — C. MN is drawn as a vertical line to the right of the characters, so the reflection is left-to-right.

Rule: reverse the order of the characters, and laterally invert every one of them.

The figure reads Y h 3 2 j g F. Reversed, the order is F g j 2 3 h Y, and each glyph must face the other way.

Option (c) shows exactly that — a backwards F, a backwards g, a backwards j, a backwards 2, a backwards 3, a backwards h, and a Y.

The Y looks untouched because Y is symmetric about a vertical axis, so it is the one character a vertical mirror cannot change. Every other character in option (c) has flipped.

Why the others are wrong

(a)
The letters are handled correctly, but the two digits are printed 3 then 2, both upright. A vertical mirror reverses their order to 2 then 3 and flips their shapes as well.
(b)
The digits are right, reversed to a backwards 2 and a backwards 3, but the h is upright, with its stem on the left. In the reflection the stem falls on the right.
(d)
Two characters are left unmirrored — the leading F, whose arms still point right, and the digit 2, printed upright. Everything else in this option is correctly reversed, which is what makes it tempting.

Concept

A mirror on a vertical line MN swaps left and right and leaves top and bottom alone. Two things change together, and options are built by getting one of them right and the other wrong.

First, the order reverses: the character nearest the mirror ends up nearest the mirror in the image, so the last character of the figure becomes the first of the reflection.

Second, each character is laterally inverted. F, h, j, g, 2 and 3 all change shape. Y does not, because it is symmetric about a vertical axis.

Because Y is symmetric, it appears the same in all four options and proves nothing. The item is decided by three characters: the F at the start, the h, and the pair of digits.

Key facts

A vertical mirror reverses left and right and leaves top and bottom unchanged.
The order of the characters reverses as well as their shapes.
Capitals symmetric about a vertical axis — A, H, I, M, O, T, U, V, W, X, Y — and the digits 0 and 8 look unchanged in a vertical mirror.

Study next

Water images, where the mirror is horizontal and top and bottom swapMirror images with the mirror placed left, right, above or below the figureWhich capitals and digits survive a vertical mirror unchanged

Common traps

Reversing the order but drawing each character the right way round.
Flipping each character but keeping the original left-to-right order.
Treating the unchanged Y as a sign that an option is correct, when it is identical in all four.

Mirror images are set again in this shift at Reasoning Q.14, with the mirror once more at MN (10 Sep 2024, 12:30).

Related PYQs

No directly related past PYQ was found.