SSC CGL 2025 Tier-I · 23 September 2025, Shift 3 · General Intelligence and Reasoning · Question 7 of 100

We transcribed this text from the pictures on a candidate's response sheet for this shift; the answer is the key SSC colour-marked on that sheet. Solution last reviewed 13 September 2026.

Where this paper and its answers come from

SSC does not publish CGL question papers or a public answer key. From 2025 the candidate response sheet prints every question and option as a picture, so the text here is transcribed from those pictures for this shift and checked against them independently; where the layout carries meaning, the picture is shown as well. Each answer is the key SSC colour-marked on that sheet. SSC released a tentative key for challenge and later its final one, both only to candidates behind a login, and the sheet does not say which of the two it carries. The solutions are written by UnlockIAS.

A is the brother of B. B is the son of C. How is A related to C?

(a)Son
(b)Nephew
(c)Uncle
(d)Cousin

Answer

Why

Correct — A.
Rule: siblings share a parent, and the gender word fixes the relation.

B is the son of C, so C is a parent of B.
A is the brother of B, so A is another child of C.

Brother makes A male.
A male child of C is C's son → option (a).

Why the others are wrong

(b)
Nephew — A nephew is the son of your brother or sister. A is C's own child, not the child of C's sibling.
(c)
Uncle — An uncle is a generation above you. A is a generation below C, on the same level as B.
(d)
Cousin — A cousin is the child of your parent's brother or sister, so a cousin stands in your own generation. A is a generation below C.

Concept

Blood-relation chains are solved one link at a time, tracking two things: generation and gender.

B is one generation below C. A is B's brother, so A stands on the same level as B and shares the same parent. The word brother makes A male, so A is C's son. Draw it as a small tree: C on top, A and B side by side beneath.

The chain reads brother as a full sibling sharing C as a parent. Nothing in the options fits any other reading, and C's gender does not matter: A is the son whether C is the father or the mother.

Key facts

A brother of your son or daughter is also your son.
A nephew is the son of your brother or sister.
A cousin is the child of your parent's brother or sister.

Study next

Three-link chains that reach grandparents and grandchildrenCoded blood relations where symbols stand for 'son of' or 'brother of'Pointing-to-a-photograph relation puzzles

Common traps

Answering nephew because the chain mentions a brother
Hunting for C's gender, which the answer does not need

Here the chain has two links and lands one generation below C.

17 Sep 2025, 16:00, Reasoning Q.8 adds a third link, P is the son of Q, Q is the brother of R, R is the son of S, and keys Grandson.

Related PYQs

No directly related past PYQ was found.

Topic: Problem Solving — all 123 SSC CGL questions on it, every solved shift.