UPSC Prelims 2011·CSAT·Logical Reasoning·Blood Relations

Read the following passage and answer that follow: A, B, C, D and E are members of the same family. There are two fathers, two sons, two wives, three males and two females. The teacher was the, wife of a lawyer who was the son of a doctor. E is not male, neither also a wife of a professional. C is the youngest person in the family and D is the eldest. B is a male. How is D related to E?

Dalvoy logo
Reviewed by Dalvoy
UPSC Civil Services preparation
Last updated 23 May 2026, 3:31 pm IST
  1. AHusbandCorrect
  2. BSon
  3. CFather
  4. DWife

Explanation

Here's a step-by-step breakdown: 1. **Analyze the family composition:** * 5 members: A, B, C, D, E. * 3 males, 2 females. * Two fathers, two sons, two wives. This structure implies a 3-generation family with two married couples. 2. **Identify the professional roles and their relationships:** * "The teacher was the, wife of a lawyer who was the son of a doctor." * This establishes a 3-generation lineage: Doctor (male) -> Lawyer (male, son of Doctor) -> Teacher (female, wife of Lawyer). 3. **Combine with family composition:** * We have Doctor (M), Lawyer (M), Teacher (F). This is 2 males, 1 female. * To get 3 males and 2 females, we need one more male and one more female. * The additional female must be the wife of the Doctor (let's call her Grandmother). * The additional male must be the child of the Lawyer and Teacher (let's call him Child). * So, the family roles are: Doctor (M), Grandmother (F), Lawyer (M), Teacher (F), Child (M). 4. **Map specific members to roles using clues:** * "C is the youngest person in the family": C = Child (M). * "D is the eldest": D = Doctor (M) or Grandmother (F). * "B is a male": B = Doctor (M) or Lawyer (M). * "E is not male, neither also a wife of a professional." * "E is not male" means E is female. The two females are Grandmother and Teacher. * "neither also a wife of a professional": This is the crucial part. The "Teacher" is explicitly described as "the wife of a lawyer who was the son of a doctor." This phrase "wife of a professional" most likely refers specifically to the Teacher in this context. If E is not the Teacher, then E must be the other female, the Grandmother. * So, E = Grandmother (F). 5. **Complete the mapping:** * We have: C (Child, M), E (Grandmother, F). * Remaining members: A, B, D. * Remaining roles: Doctor (M), Lawyer (M), Teacher (F). * "D is the eldest": Since E is Grandmother, D must be the Doctor (M) to be the eldest male and E's spouse. * "B is a male": B must be the Lawyer (M). * "A" is the last member: A must be the Teacher (F). 6. **Verify the complete family structure:** * D (Doctor, M) is married to E (Grandmother, F). * B (Lawyer, M) is their son, married to A (Teacher, F). * C (Child, M) is the son of B and A. * All conditions (2 fathers, 2 sons, 2 wives, 3 males, 2 females, professions, ages, genders) are met. 7. **Answer the question:** * How is D related to E? * D is the Doctor (M), and E is the Grandmother (F). They are married. * Therefore, D is the Husband of E. The final answer is A) Husband.
Logical Reasoning: Read the following passage and answer that follow: A, B, C, D and E are members of the same family. There are two father

Related questions

More UPSC Prelims practice from the same subject and topic.