# Q. Consider the following statements :

1. A is older than B.

2. C and D are of the same age.

3. E is the youngest.

4. F is younger than D.

5. F is older than A.

How many statements given above are required to the oldest determine person/persons?

(a) Only two

(b) Only three

(c) Only four

(d) All five

Correct Answer: (d) All five

#### Question from UPSC Prelims 2023 CSAT

**Explanation : **

## Oldest Person Determination A,B,C,D,E,F

To determine the oldest person, we need to consider all the statements.

From statement 1, we know A is older than B.

Statement 2 tells us that C and D are of the same age.

Statement 3 tells us that E is the youngest, so E cannot be the oldest.

Statement 4 tells us that F is younger than D, so D could potentially be the oldest.

However, statement 5 tells us that F is older than A, which means F is also older than B (since A is older than B).

Therefore, to determine the oldest person, we need all five statements.