| Question 1: Ok, if there's a scale, and there are three books on one side and one book on one side together with a 500gr weight; how much does one book weigh? =) | |
| 750gr | |
| 1000gr | |
| 250gr | |
| 25gr | |
| Question 1: Ok, if there's a scale, and there are three books on one side and one book on one side together with a 500gr weight; how much does one book weigh? =) | |
| 750gr | |
| 1000gr | |
| 250gr | |
| 25gr | |
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