Four Perls. Logical problem.
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hahahah let me try..
first we have to know the condition, and here is it :
1. 4 pearls (just one fake) we know only be it's weight
2. we only have 2 chances of using scales.
so here we begin..
first thing we have to do is we have to separate just 2 of them (randomly), then in our hands we have two pearls. use the scale now, if both of them are balance, it means that those pearls are real.
therefore, we will know which one of the rest pearls are fake by using second chance scale.
thanks.
heavenismycity 2 years ago