`text{phân số chỉ 140 lít còn lại là :}`
`1 - 2/7 - 1/3 = 8/21`
`text{Bể đầy nước chứa số lít là :}`
`140 : 8/21= 367,5 ( lít)`
`text{Đáp số : 367,5 lít}`
Đáp án:
367,5 (lít)
Giải thích các bước giải:
Hai vòi nước chảy vào bể thì được :
2/7 + 1/3= 13/21 (bể)
Số lít nước còn lại trong bể chiếm :
1 - 13/21 = 8/21 (bể)
bể đầy nước chứa được :
140 : 8 x 21 = 367,5 (lít)
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Vẽ đậu mầm chán nản ;-; NL : .-.
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