Can you find the sac with counterfeit gold coins?

pilpel_jarif_69 asked:


In a room with 10 sacs of gold coins, there is 1 with countterfeit ones, the only diference is that, the real ones weight 10 grams, the counterfeit weight 1 gram more or less, 9 or 11 grams. You have a electronic scale that you can use only once, This is not a trick question, there is a solution, Can you tell me?

Cindy