Bài 1Hai kho chứa 350 tấn gạo. Sau khi nhập thêm 20 tấn gạo vào kho A và 80 tấn gạo vào kho B thì số gạo ở kho B bằng 7/8 số gạo ở kho A. Hỏi lúc đầu kho nào nhiều gạo hơn và nhiều hơn bao nhiêu tấn gạo Bài 2 Hai bác thợ Thành và Long cùng làm chung một công việc theo dự tính thì 6 ngày làm xong. Làm được 4 ngày thì bác Thành bị bệnh phải nghỉ và bác Long phải làm một mình công việc ấy...
Đọc tiếp
Bài 1
Hai kho chứa 350 tấn gạo. Sau khi nhập thêm 20 tấn gạo vào kho A và 80 tấn gạo vào kho B thì số gạo ở kho B bằng 7/8 số gạo ở kho A. Hỏi lúc đầu kho nào nhiều gạo hơn và nhiều hơn bao nhiêu tấn gạo
Bài 2
Hai bác thợ Thành và Long cùng làm chung một công việc theo dự tính thì 6 ngày làm xong. Làm được 4 ngày thì bác Thành bị bệnh phải nghỉ và bác Long phải làm một mình công việc ấy trong 5 ngày nữa mới xong. Hỏi nếu làm một mình cả công việc thì mỗi người phải mất bao nhiêu ngày biết rằng năng suất làm việc của hai người trong mỗi ngày là như nhau. Ai trả lời được mình tặng gấu bông đáng yêu nha!
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