SSC CGL 2024 Tier-I · 11 September 2024, Shift 2 · General Intelligence and Reasoning · Question 10 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 as shown below.

Answer

Why

Correct — B. Rule: MN is a vertical mirror line to the right of the box, so the image is a left-right flip — top stays top, bottom stays bottom, everything trades left for right.

Check the four asymmetric elements.

Diagonal: falls from the top-left, so in the image it falls from the top-right, carrying the twin arcs across with it.

Half-disc: straight edge left, bulging right → straight edge right, bulging left.

Arrowhead: points right to the right edge → points left to the left edge.

Lower row: circle left, chevrons pointing left → circle right, chevrons pointing right.

Only option (b) reverses all four.

Why the others are wrong

(a)
Option (a) mirrors the upper half correctly but leaves the lower row untouched — the circle is still on the left and the double chevron still points left. A mirror flips every element, not most of them.
(c)
Option (c) reverses only the half-disc and the lower row. The diagonal still falls from the top-left, its twin arcs are still to its left, and the hollow arrowhead still points right.
(d)
Option (d) flips the lower row but the hollow arrowhead still points right, and the twin arcs have left the diagonal — a single arc sits beneath the triangle's base instead.

Concept

A mirror on a vertical line MN gives a lateral inversion: left and right swap, top and bottom do not. A mirror on a horizontal line does the opposite.

Do not try to picture the whole figure at once. Pick the two or three most asymmetric elements — an arrowhead, a curve bulging one way, an object sitting off-centre — and check each on its own.

An option that gets most elements right and one wrong is the standard SSC distractor here. Three of these options reverse at least one element correctly, so finish the checklist before choosing.

Mirroring is not rotation. A 180-degree turn would also send the arrowhead leftwards, but it would swap top and bottom as well, lifting the lower row above the diagonal. Only the left-right swap is wanted.

Key facts

A vertical mirror line swaps left and right and leaves top and bottom unchanged.
In the original the hollow arrowhead points right and the lower double chevron points left, so in the image they must point left and right respectively.
Rotation by 180 degrees differs from mirroring because it inverts top and bottom too.

Study next

Water images, where the mirror lies horizontally below the figureMirror images of letters and digits, where some characters are self-symmetricPaper folding and punching, which tests the same left-right reasoning

Common traps

Checking the large elements, being satisfied, and never looking at the small lower row
Confusing lateral inversion with a 180-degree rotation
Assuming a curve that bulges right will still bulge right after mirroring

SSC prints the figure inside a box with the mirror drawn as a hatched line labelled MN. Here each wrong option mirrors part of the figure and leaves the rest alone, so the checklist has to be finished. The 11 Sep 2024, 09:00 paper sets the same item at Reasoning Q.12.

Related PYQs

No directly related past PYQ was found.