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2023-12-28 21:35:16
Tổng số cây của hai lớp là:152 x 2 = 304 (cây)
Lớp 4A trồng được số cây là:(304 - 18): 2 = 143 ( cây)
Lớp 4B trồng được số cây là:143 + 18= 161 ( cây)
Đáp số: lớp 4A 143 cây,lớp 4B 161 cây