Can you discover the fake jewelry ?

Question

A man came to you.
He wanted to sell you 8 pieces of jewelry.
Those jewels 7 of them are real.
One piece is fake.
Fakes are difficult to distinguish, because they resemble other jewelry.
But it's a little heavy.
You have a balance and you can only use it twice.
Can you discover the fake jewelry ?

Answer 1

The answer is yes

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we divide 8 into 3 groups of 3+3+2

step 1- balance groups of 3, if they are equal go to step 2a, otherwise go to step 2b,
step 2a- balance remaining 2, heavier one is the fake one,
step 2b- take the heavier 3, balance 2 of them and leave one aside, if one is heavier then that is the fake one, i f they are equal, the fake one is the one we left aside