Top Puzzle 18: The Two-Brothers Age Puzzle | Puzzles for Interview - Interview Preparation PDF Download

Problem Statement

Two brothers are born on the same day from the same mother and father. However, they are not twins. One of the brothers is 4 years older than the other. How old are the brothers?

Solution

Let the age of the younger brother be x years.
Then, the age of the older brother is (x+4) years.
Since they were born on the same day, their ages will differ by 4 years throughout their lives.
Let's assume that the current year is 2021. So, the younger brother was born in 2021 - x and the older brother was born in 2021 - (x+4) = 2017 - x.
Since the difference in their ages is 4 years, we can write an equation as:
(2021 - x) - (2017 - x) = 4
Simplifying this equation, we get:
4x = 8
x = 2
Therefore, the younger brother is 2 years old and the older brother is 6 years old.

Conclusion

The solution to the puzzle is that the younger brother is 2 years old and the older brother is 6 years old. This puzzle was all about using basic mathematical concepts like equations and simplification to arrive at a solution. It is essential to understand the problem statement and all the given information before proceeding with the solution. This puzzle teaches the importance of critical thinking and logical reasoning to solve complex problems.