What I do to estimate it and to have the exact number:
- first, I tried to count them but it was impossible as I counted many time the same log
- so I decided to split the picture into 8 parts of the same size:
-To help me, I drew a dot at the middle of each log. And I counted how many logs in each part:
estimation: 8 groups with 18 dots approximately in each group so 8*18= 144
exact number: 17+14+17+17+18+20+21+19= 143
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