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trangtrangyp2
2 năm trước
Bài 1: Trung bình cộng của hai số là 136. Số lớn gấp 3 lần số bé. Tính số lớn và số bé. Bài 2: Trong vườn có 201 quả táo và cam. Số cam gấp 2 lần số táo. Tính số loại mỗi quả.
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