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lamthoavui
2 năm trước
Một con tàu của hợp tác xã thủy sản đánh bắt được 7 tấn 290kg cá gồm cá chim, cá đuối và cá thu. Khối lượng cá thu gấp đôi khối lượng cá chim và cá đuối, khối lượng cá đuối bằng 4/5 khối lượng cá chim. Tính khối lượng mỗi loài cá. Cá thu: ..... kg Cá đuối: ..... kg Cá chim: ..... kg
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