Directions(1-5) : Study the following information carefully and answer the questions given beside.
In a certain coded language:
‘X + Y’ means ‘Y is the brother of X’.
‘X ? Y’ means ‘X is the daughter of Y’.
‘X ! Y’ means ‘Y is the sister of X’.
‘X / Y’ means ‘X is the son of Y’.
‘X$Y’ means ‘X is the father of Y’.
‘X & Y’ means ‘X is the mother of Y’
Q1) Which of the following can be derived from the given expression – “B$A!R?E&Y+D”?
A.A?B
B.Y!R
C.A/E
D.D+R
E.All of these
Explanation
Correct Option: B
Decoded representation:
B is the father of A. R is the sister of A. R is the daughter of E. E is the mother of Y. D is the brother of Y.
Thus clearly, only option B i.e. R is the sisiter of Y
Q2) How is J related to M in the following expression – “M/T$W?Q!J”?
A.Niece
B.Paternal Aunt
C.Maternal Aunt
D.Mother
E.Can’t be determined
Explanation
Correct Option: C
Decoded representation:
M is the son of T. T is the father of W. W is the daughter of Q. J is the sister of Q.
J is the maternal aunt of M.
Hence option C is correct.
Q3) Which of the following conclusions cannot be derived from the given expression – “G?K/M$X&S?R”?
A.The number of males and females in the family is equal.
B.R is the paternal uncle of G.
C.R is the son-in-law of M.
D.K is the paternal uncle of S.
E.None of these
Explanation
Correct Option: D
Decoded representation:
G is the daughter of K. K is the son of M. M is the father of X. X is the mother of S. S is the daughter of R.
Except, “K is the paternal uncle of S.” all other conclusions can be derived.
Hence option D is correct.
Q4) How is M related to V in the expression – “V / F ! D + H $ O ? M”?
A.Paternal Aunt
B.Maternal Aunt
C.Nephew
D.Niece
E.Can’t be determined
Explanation
Correct Option: E
Decoded representation:
V is the son of F. D is the sister of F. H is the brother of D. H is the father of O. O is the daughter of M.
As we don’t know whether F is the father or mother of V, thus we can’t determine whether M is the Maternal aunt or Paternal aunt of V.
Hence, option E is correct.
Q5) How is L related to C in the expression – “K ? D ! C & G + V / L” ?
A.Husband
B.Brother
C.Nephew
D.Wife
E.None of these
Explanation
Correct Option: A
Decoded Representation:
K is the daughter of D. C is the sister of D. C is the mother of G. V is the brother of G. V is the son of L.
L is the husband of C.
Hence option A is correct.
Q6) If A + B means A is the mother of B; A – B means A is the brother B; A % B means A is the father of B and A x B means A is the sister of B, which of the following shows that P is the maternal uncle of Q?
A. Q – N + M x P
B. P + S x N – Q
C. P – M + N x Q
D. Q – S % P
E. none of the above
Explanation
Option C
P – M → P is the brother of M
M + N → M is the mother of N
N x Q → N is the sister of Q
Therefore, P is the maternal uncle of Q.
Q7) Introducing a boy, a girl said, “He is the son of the daughter of the father of my uncle.” How is the boy related to the girl?
A. Brother
B. Nephew
C. Uncle
D. Son-in-law
E. Father
Explanation
Option A
The father of the boy’s uncle → the grandfather of the boy and daughter of the grandfather → sister of father.
Q8) If A is the brother of B; B is the sister of C; and C is the father of D, how D is related to A?
A. Brother
B. Sister
C. Nephew
D. Cannot be determined
E. None of these
Explanation
Option : D
Explanation:
If D is Male, the answer is Nephew.
If D is Female, the answer is Niece.
As the sex of D is not known, hence, the relation between D and A cannot be determined.
Note: Niece – A daughter of one’s brother or sister, or of one’s brother-in-law or sister-in-law. Nephew – A son of one’s brother or sister, or of one’s brother-in-law or sister-in-law.
Q9) If A + B means A is the brother of B; A – B means A is the sister of B and A x B means A is the father of B. Which of the following means that C is the son of M?
A. M – N x C + F
B. F – C + N x M
C. N + M – F x C
D. M x N – C + F
E. None of these
Explanation
Option : D
Explanation:
M x N → M is the father of N
N – C → N is the sister of C
and C + F → C is the brother of F.
Hence, M is the father of C or C is the son of M.
