1/Cuối kỳ 1 , lớp 5A có số học sinh đạt danh hiệu học sinh giỏi kém 1/4 tổng số học sinh của lớp là 2 em . Số còn lại đạt học sinh khá và nhiều hơn 1/2 số học sinh của lớp là 12 em . Tính : A/ số học sinh của lớp 5A B/ số học sinh giỏi của lớp 5A 2/ lớp 5B có số học sinh giỏi nhiều hơn 1/5 số học sinh của lớp là 3 em . Số học sinh còn lại nhiều hơn 1/2 số học sinh của lớp là 9 em . Tính : A/ số học sinh giỏi của lớp 5B B/ số học sinh của lớp 5B

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