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2024-03-15 14:17:56
a)tổng số học sinh là:16+11+10+3=40(học sinh)
Phần trăm số học sinh tốt là:16:40*100=40%
Phần trăm số học sinh khá là:11:40*100=27,5%
b) phần trăm số học sinh chưa đạt là:3:40*100=7,5
vậy cô giáo thông báo kết quả đúng