A merchant has four weights that, when used together on a traditional balance scale, can weigh any whole number of pounds from 1 to 15 inclusive. What are the weights of the four pieces?
1, 2, 4, and 8 pounds
By using the powers of 2 (binary weights), you can combine them or place them on opposite sides of the scale to create every single whole number from 1 to 15.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Hard. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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