A king asks a learned man to visit his palace. The man says I will come any.........What was the weights of those rings?

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A king asks a learned man to visit his palace.
The man says I will come any day next month.
But give me gold in gms equal to the date on which I come.
The king asks the jeweler to make rings of 1 to 31 gms.
The jeweler was smart and makes only 5 rings.
What was the weights of those rings?

posted Mar 4, 2017

The rings are 1, 2, 4, 8 and 16 grams.
This allows any combination up to (and including) 31.

1g, 2g, 4g, 8g and 16g

1g , 2g, 4g, 8g and 16g

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