Bài 1: Tìm 2 STP có tổng bằng 101,5. Nếu bớt số thứ nhất đi 8,5 và thêm vào số thứ hai 9,5 thì số thứ hai sẽ gấp 4 lần số thứ nhất. Bài 2: Lớp 5A đầu năm đưa ra kế hoạch 40% số bạn trong lớp đạt học sinh giỏi khi kết thúc năm học lại có thêm 6 bạn nữa đạt học sinh giỏi nên số học sinh giỏi chiếm 60% số học sinh cả lớp. Hỏi kết thúc năm học lớp 5A có bao nhiêu học sinh giỏi ? Giups mình với mình đang cần gấp nhanh vote 5* và lời cảm ơn. UvU

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