Blood Relations - 1 - CUET Commerce Free MCQ Practice Test with solutions

• “Brothers and sisters, I have none” ⇒ Pinku is an only child.

• “My father’s son” therefore refers to Pinku himself.

• “His mother is the wife of my father’s son” ⇒ the gentleman’s mother is Pinku’s wife.

• Hence the gentleman is Pinku’s child, and since Pinku says “his mother,” the child is male
  ⇒ son.

• M is the father of O and O is the sister of P.
  This implies M is also the father of P.

• Since M is the father of both O and P, and P is the son of N,
  it means N is M's wife (because M and N are the parents of O and P).

• Q is the brother of M.

• Since N is the wife of M and Q is M’s brother, N is the sister-in-law of Q.

  Correct Answer: a) Sister-in-law.

D is C’s daughter.

• B is C’s brother ⇒ B is D’s paternal/maternal uncle.

• A is B’s sister (so an aunt).

• K is D’s brother’s brother? Wait: K is the brother of D, so K is D’s brother, not an uncle.

• C is D’s parent.

Therefore, the uncle of D is B.

Answer: B) B.

M is the mother of P, making M the grandmother of T. Y is the child of M's sibling, which means T is the grandchild of M. Therefore, M is related to T as their great-grandmother or great-grandfather.

• Meera’s mother’s mother = Meera’s maternal grandmother.

• That grandmother’s daughter-in-law = wife of the grandmother’s son. The son here is Meera’s maternal uncle (her mother’s brother). So this daughter-in-law is Meera’s maternal aunt by marriage.

• That woman’s daughter = the daughter of Meera’s maternal uncle and aunt → Meera’s cousin sister.

So the person is Meera’s cousin sister.

Ritesh's mother's grandson is Ritesh's son, and his son's wife is his daughter-in-law.
Thus, Ritesh is the girl's father-in-law.

The daughter of the wife of my husband = my daughter.
Brother of my daughter = my son.

So, the man is Deepika’s son.

M is the husband of N.

N is the daughter of P, so N is a child of P.

P is the son of Q, so P is a child of Q.

Q is the wife of R, so P is the child of both Q and R.

Thus N is the granddaughter of R, and M, being her husband, is the grandson-in-law of R.

Hence, Option A is correct.

P + Q → P is the father of Q

Q & R → Q is the brother of R
→ So P is also R’s father.

R ÷ S → R is the son of S
→ So S is R’s mother.

S - T → S is the mother of T
→ So T is also child of S (and P).

T * U → T is the sister of U
→ So U is also child of P and S.

Therefore, P is the father of U.

• M $ N → M is the father of N
• N # P → N is the brother of P ⇒ N and P are siblings
• P @ Q → P is the sister of Q ⇒ P and Q are siblings (So N, P, and Q are all siblings. Since M is father of N and P, he is also father of Q.)
• Q & R → Q is the wife of R
• R $ S → R is the father of S (So Q is the mother of S.)

Since Q is M’s daughter, and S is Q’s child,
⇒ M is the grandfather of S.

P + Q → P is father of Q
Q @ R → Q is sister of R
R # S → R is son of S
S * T → S is mother of T
T $ U → T is wife of U

So:

• S is the mother of T
• Therefore S is also the mother of R and Q
• P is the father of Q → so P is the father of T too
• T is the wife of U

Thus: P is U’s father-in-law.

First, decode each symbol step by step:

• M & N: M is the husband of N

• N @ P: N is the daughter of P

• P # Q: P is the wife of Q (so Q is the husband)

• Q $ R: Q is the son of R (so R is the parent)

• R % S: R is the brother of S (so S is sibling of R)

Now link the family:

1. R and S are siblings.

2. R is the parent of Q.

3. Q (male) is the husband of P.

4. N is the daughter of Q and P.

5. M is the husband of N.

Thus:

• S is the sibling of N’s grandparent (R).

• So S is a great-uncle/aunt to N.

• Therefore, to M (N’s husband), S becomes an uncle-in-law.

Among the given options, the closest correct relation is:

b) Uncle

Correct option: C. P and V are the same person.

From Q ÷ R, Q is sister of R, so Q and R are siblings and share the same parents.

From R = S, R is son of S, so S is a parent of R. Therefore S is also the mother of Q.

From P + Q, P is father of Q; combined with the previous step, P and S are the parents of Q (and of R).

From S - T and T × U, S is mother of T, and T is brother of U; thus S is also mother of U.

From U ≠ V, U is daughter of V, so V is the other parent of U. Since S is the mother of U, the other parent must be the father and therefore equal to P. Hence V = P.

Therefore P and V are the same person; option C is correct.

1. M % N → M is the father of N
2. N @ P → N is the sister of P (N and P share parents)
3. P * Q → P is the son of Q (Q is a parent of P)
4. Q $ R → Q is the mother of R
5. R & S → R is the daughter of S (S is also a parent of R)
6. S # T → S is the brother of T (S and T are siblings)
7. T $ N → T is the mother of N

From steps (1) and (7):

• M is the father of N
• T is the mother of N

Therefore, M and T are parents of the same child (N).
Hence, M is the husband of T.

A - Brother-in-law.

From P @ Q, P is husband of Q.

From Q * R, Q is daughter of R.

From R $ S, R is father of S.

From S & T, S is son of T.

Since R is father of S and T is mother of S, R and T are a married couple (parents of S).

From T # U, T is mother of U, so U is a child of the same couple; combining with Q being a child of the couple, Q and U are sisters.

From U % V, U is wife of V, so V is husband of one sister while P is husband of the other sister. Therefore P and V are brothers-in-law.

Hence option A is correct.

Answer: A - Grandfather.

M is the father of N, and N is the brother of P; therefore M is also the father of P.

P is the son of Q, and Q is the mother of R, so Q is female and a parent of P. Hence M and Q are husband and wife.

R is the sister of S, so S is also a child of M and Q.

S is the wife of T, and T is the father of U, so S is the mother of U.

Because S is a child of M, U is a grandchild of M. Therefore M is the grandfather of U.