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l123
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2022-07-07 10:39:02
Trên giá có số quyển sách TA là: 80 nhân 3/10=24(quyển)
trên giá có số quyển sách TOÁN là:80 nhân 1/2=40(quyển)
trên giá sách có số quyển sách văn là : 80-(40+24)=16(quyển)
Đ/S:16 QUYỂN SÁCH VĂN