 
<translate> Nke mbụ, chọpụta ọnụ ọgụgụ nke osisi pine site n'ịmụba ọnụ ọgụgụ nke osisi site na ọnụ ọgụgụ nke osisi kwa osisi: 80 logs / pine * 8 pines = 640 logs. Mgbe ahụ, mee otu ihe ahụ maka osisi maple: 60 logs / maple * 3 maples = 180 logs. Na-eme otu ihe ahụ maka walnut osisi: 100 osisi / walnut * 4 walnuts = 400 osisi. N'ikpeazụ, gbakọọ ọnụ ọgụgụ osisi ndị dị n'ụdị osisi nke ọ bụla iji mata ọnụ ọgụgụ ha: osisi 640 + osisi 180 + osisi 400 = osisi 1220. Ya mere azịza ya bụ 1220. <eng> First find the total number of pine logs by multiplying the number of trees by the number of logs per tree: 80 logs / pine * 8 pines = 640 logs. Then do the same thing for the maple trees: 60 logs / maple * 3 maples = 180 logs. And do the same thing for the walnut trees: 100 logs / walnut * 4 walnuts = 400 logs. Finally, add up the number of logs from each type of tree to find the total number: 640 logs + 180 logs + 400 logs = 1220 logs. So the answer is 1220. 