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thienduong792
2 năm trước
Lớp 6A có 40 học sinh. Số học sinh giỏi bằng 10% số học sinh của cả lớp. Số học sinh khá bẳng 1/2 số học sinh cả lớp. Còn lại là số học sinh trung bình. a) Tính số học sinh mỗi loại của lớp 6A. b) Tính tỉ số phần trăm của số học sinh trung bình so với số học sinh cả lớp.
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