5 Sept 2013

A Spice Trader: Middle Secondary Mathematics Competition Question

A spice trader was getting ready to go to market. He uses a balance (as in the diagram) and a set of weights measured in ounces. He wishes to weigh all whole number ounces from 1 to 32 inclusive.

He would also like to carry the minimum number of weights and the minimum sum of the weights.

Which weights should he take with him?

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