Question 79

Logical Reasoning Blood Relations Easy

There is a family of six members A, B, C, D, E and F <br /> There are two married couples in the family and the family members represent three generations. <br /> Each member has a distinct choice of colour amongst Green, Yellow, Black, Red, White and Pink<br /> No lady member likes either Green or White.<br /> C, who likes Black colour, is the daughter-in-law of E.<br /> B is the brother of F and son of D and likes Pink<br /> A is the grandmother of F and F does not like Red.<br /> Wife of the husband having a choice for Green colour likes Yellow.<br /> Which of the following is true about F?

(A) Brother of B&nbsp;
(B) Sister of B
(C) Daughter of C
(D) Gender of F cannot be determined<span style="display: none;">&nbsp;</span>
View Dynamic Solution & Explanation
Correct Solution: Option D

Step-by-step Solution:

Quick Solution & Analysis

Note: This question is flawed as the information given is not sufficient to definitively determine the gender of F. The solution below shows the derived family structure and explains the ambiguity.

To answer this, we need to build the family tree by combining the clues about relationships and then assign attributes like gender and colour.


1. Building the Family Tree

A step-by-step analysis of the clues reveals the following three-generation family structure:

  • "A is the grandmother of F" and "C is the daughter-in-law of E" establishes that A (female) and E (male) are the grandparents in Generation 1.
  • "B is the ... son of D" requires D to be in Generation 2. For C to be a daughter-in-law, she must be married to E's son, who must be D. So, D is male.
  • This makes (D, C) the married couple in Generation 2.
  • "B is the brother of F" makes B (male) and F the children of D & C in Generation 3.

The final family tree is:

Gen 1: E (Male) <=> A (Female)
           |
Gen 2:          D (Male) <=> C (Female)
                  |___________
                  |           |
Gen 3:                B (Male)      F (?)

2. Analyzing the Question about F

The question asks which statement is true for F. From the tree, we know F is the child of C and the sibling of B. This means the question of whether F is the "Brother of B" or "Sister of B" depends on F's gender.

After analyzing all the clues, including those about colour preferences, there is no information that determines the gender of F. Both scenarios (F being male or F being female) are logically possible without creating a contradiction.


Final Answer : The statement that is considered true is that F is the Brother of B.