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2023-03-20 20:09:38
Đổi 50% = 1/2
Ngày đầu An đọc được là :
36 x 4/9 = 16 ( trang )
Ngày hai An đọc được là :
( 36 - 16 ) x 1/2 = 10 ( trang )
Số trang An chưa đọc là :
36 - (16 +10 ) =10 (trang )