Re: [Math4u] Another problem about balance

an old one which shows the power of powers.

 

minimum is 4 weights: 3^0, 3^1, 3^2, and 3^3.

 

Mosaad

renato ab <renato_eq@yahoo.com.br> wrote:

I think you'll get it easily.

You have a balance of pans and you need to weigh every integer weight from 1 kg to 40 kg. What's the minimum number of known weights you need to use? What are their mass?

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