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At first glance a simple question: When I was 4 years old, my brother was half as old. Now I’m 18 – how old is my brother now? It seems clear, but many people make a mistake when answering!
What is the correct answer?
Let’s look at it logically. When I was 4 years old, my brother was half as old, that is 2 years old. That means there is always a 2-year difference between us, no matter how old we are. If I’m now 18, add 2 years to that and you’ll find that my brother must now be 16 years old.
Many people are misled because the brother being half that age is mentioned at age 4, and they start overthinking halves of age, when it’s really just a simple age difference.
Did you figure it out?
Try to think about similar riddles logically, even if they may seem complicated at first glance. Such tasks help keep your mind active and exercise logical thinking.
