Logical Reasoning

Blood Relations

Medium

A + B means 'A is mother of B'

A - B means 'A is husband of B'

A × B means 'A is son of B'

A÷B means 'A is brother of B'

If Q ÷ U × K × H - D + J, then how is K related to J?

Brother

Sister

Father

Can't determine

✅ Correct Option: 1

Let me help you crack this step-by-step!

First, let's be crystal clear about what each symbol means:

$A + B$ = A is mother of B

$A - B$ = A is husband of B

$A \times B$ = A is son of B

$A \div B$ = A is brother of B

Quick tip: Each symbol tells us about the relationship where the person on the LEFT relates to the person on the right!

Now let's decode $Q \div U \times K \times H - D + J$ one relationship at a time, moving from left to right:

$Q \div U$ → Q is the brother of U

$U \times K$ → U is the son of K (so K is U's parent)

$K \times H$ → K is the son of H (this tells us K is male!)

$H - D$ → H is the husband of D (so H and D are married)

$D + J$ → D is the mother of J

Drawing the family tree:

H and D are married (from $H - D$ )

K is the son of H (from $K \times H$ ), and since H is married to D, K is the son of both H and D

D is the mother of J (from $D + J$ ), so J is also a child of H and D

Therefore, K and J are both children of the same parents H and D.

Since K is explicitly a son (meaning K is male), and K and J are siblings:

$K$ is the brother of $J$

Common doubt: How do we know K is male? Because $K \times H$ means "K is the son of H" - the word "son" confirms K is male!

Common doubt: What about Q and U? They're part of the family tree (U is K's son, Q is U's brother), but the question only asks about K and J's relationship.

Answer: Brother

2026: 30 May Shift 2

If X is the brother of the son of Y's son, how is X related to Y?

2026: 29 May Shift 1

In a family of eight persons, there are two couples, each having two children B and D are brothers and each has two children. E is the aunt of A. Who is the cousin brother of C, C is the sister of H, who is the cousin brother of G, F is the wife of B. How is H related to F ?

2026: 14 May Shift 1

Deepak is the son of Ram's father's sister. Yamini is the daughter of Seema who is the mother of Gaurav. Amit is the father of Madhav and the grandfather of Deepak. Seema is the wife of Amit and has only one daughter. Ram is the only son of Gaurav. Based on the given information, the following inferences are drawn:

A. Yamini is the aunt of Ram.

B. Amit is the maternal grandfather of Deepak.

C. Madhav is the cousin of Ram.

D. Gaurav is the brother of Yamini.

Choose the correct answer from the options given below:

2025: 3 June Shift 2

Read the following information carefully & answer the question given below:

I)'P+Q' means 'P is mother of Q'

II) 'P-Q' means 'Q is sister of P'

III) 'P×Q' means 'P is the brother of Q'

IV) 'P÷Q' means 'Q is the father of P'

Which of the following means R is nephew of T?

A) R×J÷T

B) R÷J-T

C) R-M+T-J

D) R-M×J÷T

Choose the correct answer from the options given below:

2026: 21 May Shift 1

A is the son of B. C, B's sister, has a son D and a daughter E. F is maternal uncle of D. How is A related to D?

2026: 20 May Shift 1

Six members of a family, namely P, Q, R, S, T, U are traveling together, Q is the son of R but R is not the mother of Q. P and R are a married couple. T is the brother of R. S is the daughter of P. U is the brother of Q. How many male members are there in the family?

A + B means 'A is mother of B' A - B means 'A is husband of B' A × B means 'A is son of B' A÷B means 'A is brother of B' If Q ÷ U × K × H - D + J, then how is K related to J?

Solution

Related questions:

Keyboard Shortcuts

CUET General Test Past Year Questions (Topic-Wise)

A + B means 'A is mother of B'

A - B means 'A is husband of B'

A × B means 'A is son of B'

A÷B means 'A is brother of B'

If Q ÷ U × K × H - D + J, then how is K related to J?