BLOOD RELATIONS

!
KEY POINTS:
NOTE :

1 Firstly try to find out the two persons among whom the
relation is to be found

2 Always use pictorial representation to solve the

question

3 Correlating the relations given in question with your

personal relations

4 Never predict the gender of a person on the basis of

name
Important Blood Relations :

1. Children of same parents - Siblings

2. Son of father or mother - Brother
3. Father’s/ mother’s only son - Oneself
4. Son of son of grand father - Cousin/oneself/Brother
5. Son of brother/sister - Nephew
6. Daughter of bother/sister - Niece
7. Father-in-law of father - Grandfather
8. Mother-in-law of father - Grandmother
9. Father’s father only son - Father
10.Only daughter-in-law of father’s father - Mother
11.Second wife of father - Step mother
12.Son of second wife of father - Step Brother
1. How my mother’s, sister’s, brother’s only child is
related to me?
1) Brother 2) Brother-in-law 3) Cousin 4) Sister
2. How my daughter’s son’s, father is related to me?
1) Son 2) Father 3) Brother 4) Son-in-law
3. What is my father’s daughter-in-law to me, If my father
has only one child?
1) Wife 2) Mother 3) Cousin 4) Sister
4. How my paternal uncle’s wife’s son’s father’s only
sibling is related to me?
1) Father 2) Uncle 3) Mother 4) Aunt
Type- I ( INDICATING RELATIONS)
MODEL:1 BASED ON ALPABETS
1. A is the father of B and C is the son of D. E is the
brother of A. B is the sister of C. How is D related to E?
A) Brother-in-law B) Daughter
C) Sister-in-law D) Brother
2. P is the father of Q and the grandfather of R, who is
the brother of S. S’s mother, T, is married to V. T is the
sister of Q. How is V related to P?
A) Nephew B) Brother-in-law
C) Son D) Son-in-law
3. B is the son of D. D is C’s Sister and has a son E. D is the
daughter of F. G is the maternal uncle of B. How is G related to E?
1) Brother 2) Father 3) Uncle 4) Cousin
4. A is B’s sister and C is B’s mother. D is C’s father. E is D’s mother.
How is A related to D?

(1) Grandfather 2) Daughter 3) Grandmother 4) Grand daughter

 MODEL: 2 BASED ON WORDS (NAMES)
1. Arsh is Shivam’s father and Dhruv is the son of Bimla. Eshwar is the
father of Arsh. If Shivam is the brother of Dhruv, how is Bimla related to
Eshwar?
A) Mother B) Daughter-in-law
C) Sister-in-law D) Wife
2. Amit is the brother of Sonia. Jyoti is the sister of Nikita. Sonia is the
daughter of Satish’s father. Nikita is the daughter of Kavinder. Jyoti is the
mother of Amit. Mukesh is Nikita’s only sister’s husband. How is Satish
related to Kavinder?
A) Grandson B) Son C) Brother D) Son-in-law
3. Vishnu is the brother-in-law of Vinay and he is the only child of
his parents. How is Vinay’s only sibling related to Vishnu’s
mother?
1) Daughter 2) Daughter-in-law 3) Sister 4) Sister -in-law
MODEL 3: POINTING A PERSON
1. Pointing to the photograph of Sanchi, Nitin said, “Her mother’s father’s
son’s wife is my mother-in-law’s only daughter”. How is Nitin related to
Sanchi’s mother?
A) Maternal uncle B) Brother
C) Paternal uncle D) Paternal grandfather
2. Pointing to a girl in the photograph, Umesh said, “Her mother’s brother
is the only son of my mother’s father.” How is the girl’s mother related to
Umesh?
(a) Mother (b) Sister
(c) Aunt (d) Grandmother
3. Pavan said to Kalyan, “Your father’s brother’s son is my
brother”. Then How Pavan’s sister’s only uncle’s wife is
related to Kalyan?

1) Mother 2) Aunt 3) Mother-in-law 4) Sister

4. Introducing a girl, Mr.Ramu said, “Her mother is the only
daughter of my mother-in-law.” How Ramu is related to the girl?

1) Unlce 2) Husband 3) Father 4) Brother

5. Pointing towards a man, Sai said “ His father is the
only son of my father”. Then How Sai is related to that
man?
a) Brother b) Sister
c) Father d) can’t be determined
6.Pointing towards a photograph of Mr. Prasanna, Mr.
Thanai Said, “The father of his sister is the husband of
my wife’s mother”. How Thanai is related to Prasanna?

A) Father B) Father-in-law C) Brother-in-law D) Son-in-law

7.Pointing towards a man Vijay said, “His only brother is
the father of my daughter’s father”. How is the man
related to Vijay?

A) Brother B) Sister C) Uncle D) Son

8. Pointing to a man, a lady said “His mother is the only
daughter of my mother”. How is the lady related to the
man? (SSC CPO 2014)
A) Mother B) Daughter C) Sister D) Aunt
9. A man showed a boy next to him and said “He is the
son of my wife’s sister-in-Law. How is my son related to
him? (SSC CGL 2013)
A) Cousin B) Brother C) Uncle D) Nephew
TYPE – II SYMBALS OR CODE BASED
PROBLEMS
1. A+B means ‘B is the brother of A’;
A−B means ‘A is the mother of B’;
A×B means ‘A is the father of B’;
A÷ means ‘A is the son of B’;
If P+R× − ÷ + , then how is S related to R?
A) Grandson B) Brother C) Grandfather D) Son-in-law
2. A+B means ‘A is the wife of B’;
A−B means ‘B is the daughter of A’;
A×B means ‘B is the brother of A’;
A÷ means ‘A is the father of B’;
If, P+R× − + ÷ , then how is P
related to the mother of U?
A) Paternal grandmother
B) B) Aunt
C) Maternal grandmother
D) Mother
TYPE:III PUZZLEBASED PROBLEMS
1. In a family of eight persons with two couples, P is the son of Q and
brother of R. S is the daughter of M, who is married to R. T is the aunt of S
and mother of V. R’s nephew W is the son of P and has a sister V. How is V
related to M?
A) Nephew B) Daughter
C)Niece D) Cousin sister
2. 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?
A) Nephew B) Son-in-law C) Son D) Brother-in-law
PROBLEMS FOR PRACTICE
21. Study the following information carefully and answer
the questions given below.
P X Q means ‘P is the brother of Q’
P - Q means ‘P is the mother of Q’
P + Q means ‘P is the sister of Q’
P % Q means ‘P is the father of Q’
How is W related to M in the expression “W+T%RXM”

A) Paternal Aunt B) Niece C) Nephew D) Father

22. Study the following information carefully and answer
the questions given below.
P X Q means ‘P is the brother of Q’
P - Q means ‘P is the mother of Q’
P + Q means ‘P is the sister of Q’
P % Q means ‘P is the father of Q’
How is K related to D in the expression “D-J+M%K”?
A) Grandson B) Granddaughter C) Niece D) Grand child
23. Study the following information carefully and answer
the questions given below.
P X Q means ‘P is the brother of Q’
P - Q means ‘P is the mother of Q’
P + Q means ‘P is the sister of Q’
P % Q means ‘P is the father of Q’
How R is related to M in the Express “M+J%TXR”?
A) Nephew B) Niece C) Niece/Nephew D) Aunt
24. Study the following information carefully and answer
the questions given below.
P X Q means ‘P is the brother of Q’
P - Q means ‘P is the mother of Q’
P + Q means ‘P is the sister of Q’
P % Q means ‘P is the father of Q’
Which of the following expression represents B is the
paternal uncle of H?
A) B+M%H B) BXM%H C) B+M-H D) BXM+H
 25. Study the following information carefully and answer
the questions given below.
P @ Q means P is the father of Q.
P & Q means P is the mother of Q.
P * Q means P is the son of Q.
P # Q means P is the daughter of Q.
P $ Q means P is the brother of Q.
P % Q means P is the sister of Q.
Which of the following means W is the mother of Z?

1) W*X*Y@Z 2) W@X*Y#Z 3) W&X#Y@Z 4) W%X*Y@Z

26. Study the following information carefully and answer the
questions given below.
P @ Q means P is the father of Q.
P & Q means P is the mother of Q.
P * Q means P is the son of Q.
P # Q means P is the daughter of Q.
P $ Q means P is the brother of Q.
P % Q means P is the sister of Q.
Which of the following means E is the nephew of G?

1) E#F$G 2) E*F$G 3) E*F@G 4) E#F%G

 27. Study the following information
carefully and answer the
questions given below.
P @ Q means P is the father of Q.
P & Q means P is the mother of Q.
P * Q means P is the son of Q.
P # Q means P is the daughter of Q.
P $ Q means P is the brother of Q.
P % Q means P is the sister of Q.
Which of the following means H is the father of L?

1) H@I%J#K&L 2) H&I%J#K@L 3) H@I%J%K#L 4) H&I#J@K$L

28. Study the following information carefully and answer the
questions given below.
P @ Q means P is the father of Q.
P & Q means P is the mother of Q.
P * Q means P is the son of Q.
P # Q means P is the daughter of Q.
P $ Q means P is the brother of Q.
P % Q means P is the sister of Q.

Which of the following means M is the aunt of S?

1) M$N@R$S 2) M%N@R$S 3) M%N&R@S 4) M@N&E%S

29. Read the following information carefully and answer
the questions given below.
If ’A + B’ means A is the father of B.
If ‘A × B’ means A is the sister of B.
If ‘A $ B’ means A is the wife of B.
If ‘A % B’ means A is the mother of B.
If ‘A ÷ B’ means A is the son of B.
What should come in place of the question mark, to
establish that J is the brother of T in the expression
J÷P%H ? T%L
A) x B) ÷ C) $ D)Either + or ×
30. Read the following information carefully and answer
the questions given below.
If ’A + B’ means A is the father of B.
If ‘A × B’ means A is the sister of B.
If ‘A $ B’ means A is the wife of B.
If ‘A % B’ means A is the mother of B.
If ‘A ÷ B’ means A is the son of B.
What should come in place of the question mark, to
establish that T is the sister-in-law of Q in the
expression R%T×P ? Q+V
A) + B)$ C)× D) %
31. Read the following information carefully and answer
the questions given below.
If ’A + B’ means A is the father of B.
If ‘A × B’ means A is the sister of B.
If ‘A $ B’ means A is the wife of B.
If ‘A % B’ means A is the mother of B.
If ‘A ÷ B’ means A is the son of B.
Which among the following expressions is true, if Y is
the son of X is definitely false?
A) W%L×T×Y÷X B) W+L×T×Y÷X
C) X+L×T×Y÷W D) W$X+L+Y+T
32. Read the following information carefully and answer
the questions given below.
If ’A + B’ means A is the father of B.
If ‘A × B’ means A is the sister of B.
If ‘A $ B’ means A is the wife of B.
If ‘A % B’ means A is the mother of B.
If ‘A ÷ B’ means A is the son of B.
Which among the given expressions indicate that M is
the daughter of D
A) L%R$D+T×M B) L$D÷R%M÷T
C) L%R%D+T÷M D) L+R$D+M×T
33. If ‘P — Q’, means Q is son of P,
’P × Q’ means P is brother of Q,
‘P ÷ Q’ means Q is sister of P and
‘P + Q’ means P is mother of Q,
then which of the following is definitely true about
‘N × K — M ÷ L’? [SSC CGL -2019]
A) K is father of L and M
B) L is daughter of K and niece of uncle N
C) K is father of L and M, his son and daughter respectively
D) M is uncle of K’s brother N
34. A+B means ‘A is the wife of B’;
A-B means ‘B is the daughter of A’;
A×B means ‘B is the brother of A’;
A÷B means ‘A is the father of B’;
If, P+R×T-Q+S÷U, then how is P related to the mother of
U? [SSC CGL -2019]
A) Paternal grandmother B) Aunt
C) Maternal grandmother D) Mother
35. A+B means ‘A is the husband of B’;
A-B means ‘B is the sister of A’;
A×B means ‘A is the mother of B’;
A÷B means ‘B is the son of A’;
If, P+R×T-Q÷S+U, then how is P related to S?
[SSC CGL -2019]
A) Maternal grandfather B) Father-in-law
C) Paternal grandfather D) Uncle
36. A+B means ‘B is the sister of A’;
A-B means ‘A is the father of B’;
A×B means ‘B is the son of A’;
A÷B means ‘B is the husband of A’;
If E÷F-H+J×G+D, then how is D related to H?
[SSC CGL -2019]
A) Aunt B) Uncle C) Father D) Niece
37. A+B means ‘A is the father of B’;
A×B means ‘A is the brother of B’;
A÷B means ‘A is the sister of B’;
Which of the following expressions means ‘H is the
grandson of P’?
A) P+K+D×H÷M B) H+K+D×P÷M
C) D+H+K×M÷P D) P+K+D÷H×M
38. Read the following information carefully and answer
the Q’s given below. All the six members of a family A, B,
C, D, E and F are travelling together. B is son of C but C is
not the mother of B. A and C are married couple. E is the
brother of C. D is the daughter of A. F is the brother of B
How E is related to D?
A) Father B) Brother C) Uncle D) Aunt
39. Read the following information carefully and answer
the Q’s given below. All the six members of a family A,
B, C, D, E and F are travelling together. B is son of C but
C is not the mother of B. A and C are married couple. E
is the brother of C. D is the daughter of A. F is the
brother of B
Which of the following is a pair of females?
A) AE B) BD C) DF D) AD
40. Read the following information carefully and answer
the Q’s given below. All the six members of a family A, B,
C, D, E and F are travelling together. B is son of C but C
is not the mother of B. A and C are married couple. E is
the brother of C. D is the daughter of A. F is the brother
of B
How many male members are there in the family?
A) Three B) Two C) Four D) can’t be determined
41. Read the following information carefully and answer
the Q’s given below. All the six members of a family A,
B, C, D, E and F are travelling together. B is son of C but
C is not the mother of B. A and C are married couple. E
is the brother of C. D is the daughter of A. F is the
brother of B
Who is the wife of E?
A) A B) F C) B D) Data Insufficient
42. Read the following information carefully and answer
the Q’s given below. All the six members of a family A, B,
C, D, E and F are travelling together. B is son of C but C
is not the mother of B. A and C are married couple. E is
the brother of C. D is the daughter of A. F is the brother
of B
How many children does A have?
A) Four B) Three C) Two D) One
43. 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?

A) Nephew B) Son-in-law C) Son D) Brother-in-law

44. In a family, there are seven persons, comprising two
married couples, T is the son of M and the grandson of
K. M is a widower. M and R are brothers and W is the
daughter-in-law of J, who is the mother of R and the
grandmother of D. How is D related to M?

A) Son B) Son-in-law C) Nephew or niece D) Brother

45. There are six members in a family. A is the father of D,
E is the grandfather of D. B is the daughter-in-law of C. F
is the uncle of D. what is the relationship of C with F?

A) Sister B) Mother-in-law C) Mother D) Data inadequate

Directions(46-50): These questions are based on the
following information. In a family of eight members, there
are two married couples. W is the brother of S. who is the
daughter-in-law of P. T is the grandson of Q. R is only the
nephew of V. U is the sister of T and the daughter of R. Q
does not have any sibling, W is the brother-in-law of R.
46. How is U related to P?
A) Daughter B) Niece C) Wife D) Granddaughter
Directions(46-50): These questions are based on the
following information. In a family of eight members, there
are two married couples. W is the brother of S. who is the
daughter-in-law of P. T is the grandson of Q. R is only the
nephew of V. U is the sister of T and the daughter of R. Q
does not have any sibling, W is the brother-in-law of R.
47. if P is a male then how is Q related to S?
A) Father B) Mother C) Father-in-law D) Mother-in-law
Directions(46-50): These questions are based on the
following information. In a family of eight members, there
are two married couples. W is the brother of S. who is the
daughter-in-law of P. T is the grandson of Q. R is only the
nephew of V. U is the sister of T and the daughter of R. Q
does not have any sibling, W is the brother-in-law of R.
48.How is W related to U?
A) Paternal uncle B) Maternal uncle
C) Father D) Grandfather
Directions(46-50): These questions are based on the
following information. In a family of eight members,
there are two married couples. W is the brother of S.
who is the daughter-in-law of P. T is the grandson of Q.
R is only the nephew of V. U is the sister of T and the
daughter of R. Q does not have any sibling, W is the
brother-in-law of R.
49. ’s grandson related to R’s brother-in-law?
A) Nephew B) Brother C) Uncle D) Son
Directions(46-50): These questions are based on the
following information. In a family of eight members,
there are two married couples. W is the brother of S.
who is the daughter-in-law of P. T is the grandson of Q.
R is only the nephew of V. U is the sister of T and the
daughter of R. Q does not have any sibling, W is the
brother-in-law of R.
50. If V is the brother of P, then how many females are
there in the family?
A) Two B) Three C) Four D) Five
PREVIOUS QUESTIONS FROM CGL-
2018&19
1. A+B means ‘B is the brother of A’;
A – B means ‘A is the mother of B’;
A × B means ‘A is the father of B’;
A ÷ B means ‘A is the son of B’;
If P + R × T – Q ÷ S + U, then how is S related to R?
A) Grandson B) Brother C) Grandfather D) Son-in-law
2. A+B means ‘A is the husband of B’;
A-B means ‘A is the wife of B’;
A×B means ‘A is the mother of B’;
A÷B means ‘A is the son of B’;
If W×R×J-S÷V+L, Then which of the following statements
is NOT correct?
A) W is the maternal grandmother of J.
B) V is the father-in-law of J
C) L is the mother-in-law of S
D) L is the wife of V.
3. A-B means ‘A is the sister of B’;
A×B means ‘A is the husband of B’;
A÷B means ‘A is the son of B’;
If Y×M-T-Z÷L×U, then how is U related to Y?
A) Father-in-law B) Mother-in-law C) Father D) Mother
4. A+B means ‘A is the mother of B’;
A-B means ‘A is the brother of B’;
A×B means ‘A is the father of B’;
A÷B means ‘A is the daughter of B’;
If P-K×Y-J÷S+R, then which of the following statements
is NOT correct?
A) J is daughter of P. B) P is paternal uncle of R
C) Y is son of S. D) K is husband of S.
5. In a family of seven persons, B is the brother of A and
the son of C. D is the son-in-law of C, who has two
grandchildren, E and F. A is the mother of F, who is the
niece of G. E is the son of G. If C has two children, how
is E related D?
A) Brother-in-law B) Son C) Cousin D) Nephew
6. ‘R8S’ means ‘R is the father of S’. ‘R7S’ means ‘R is the
sister of S’. ‘R6S’ means ‘R is the brother of S’. ‘R2S’
means ‘R is the wife of S’. Which of the following
expressions represents ‘X is the mother of Y’?
(SSC CGL-2020)
1. X2M8Y 2. X7M6O2Y 3. X8M2Y 4. X2M8O2Y
7). Guna is the son of Shyamala. Hemanth is the father of
Manu. Guna is married to Deepa. Guna and Manu are
siblings. Prathik is the brother of Deepa. Shyamala has
only one son. Roshan is the son of Guna. Prathik is the
father of Kalki. Jatin is the son of Manu. Prathik has no
daughters. How is Hemanth related to Roshan's father?
(SSC CGL-2020)
1. Father 2. Brother 3. Grandfather 4. Brother-in-law
8). ‘A # B’ means ‘A is the son of B’. ‘A @ B’ means ‘A is
the mother of B’. ‘A & B’ means ‘A is the wife of B’. ‘A %
B’ means ‘A is the sister of B’.
If ‘M @ R % K # G # N & T’, then which of the following
statements is NOT correct? (SSC CGL-2020)
1. N is the paternal grandmother of K.
2. R is the daughter of G.
3. T is the paternal grandfather of M.
4. M is the mother of K.
9). Pointing to the photograph of a girl, Raghav said,
“She is my father’s mother’s daughter’s only brother’s
daughter”. How is Raghav’s father related to that girl’s
mother? (SSC CGL-2020)
1. Maternal uncle 2. Father 3. Husband 4. Son
10). A # B’ means ‘A is the brother of B’. ‘A @ B’ means ‘A
is the daughter of B’. ‘A & B’ means ‘A is the husband of
B’. ‘A % B’ means ‘A is the wife of B’. If ‘W # Q @ T & Y @
M % K’, then how is K related to T? (SSC CGL-2020)
1. Mother 2. Father 3. Father-in-law 4. Mother-in-law