Read the following information and answer these questions on the basis of the information provided :
(i) There is a family of 5 persons-A, B, C, D and E.
(ii) They are working as a doctor, a teacher, a trader, a lawyer and a farmer.
(iii) B, an unmarried teacher, is the daughter of A.
(iv) E, a lawyer, is the brother of C.
(v) C is the husband of the only married couple in the family.
(vi) A, a farmer, is a father of two sons and an unmarried daughter.
(vii) Daughter-in-law of A is a doctor.
Which of the following is the married couple?

Options

A. AB
B. AD
C. BD
D. CD

Answer

D

Explanation

According to the given information:
From (i)
Five persons `rArr A, B, C, D and E`
From (ii)
Professions `rArr` doctor, teacher, trader lawyer and farmer.
farmer.
From (iii)
`B rArr` daughter of `A rArr` an unmarried teacher.
From (iv) `E rArr` brother of C `rArr` a lawyer
From (v)
`C rArr` husband.
So, `C rArr` A male.
From (iv) & (v), we get
`C rArr` brother of E.
From (iii), (iv), (vi), & (vii), we get ....(viii)
A `rArr` father of E, C and B `rArr`a farmer.
From (vii), we get
daughter-in-law of A `rArr` doctor.
By elimination, we get
D `rArr` daughter-in-law of A. ...(ix)
From (v), we get
`D rArr` wife of C. ..(x)
From (ix), we get
D `rArr` a doctor ....(xi)
By elimination, we get ...(xii)
C `rArr` a trader. ....(xii)
Only couple `rArr` C and D. (From (v) & (x)]