Cộng cả ba trường vào là ra nhé bạn: 1,5+ 1,15+0,4=3,05

Trường thứ ba có số tấn hàng là :

1,5+0,4 = 1,9 (tấn hàng)

tổng có số tấn hàng là:

1,5+1,15 + 1,9= 4.55 ( tấn hàng)

Đ/s 4.55 tấn hàng

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trường thứ ba là:1,15+0.4=1,45(tấn)

tổng:1,5+1,15+1,45=4,1(tấn0

nhớ k đó hìhì

mik tính rất nhanh mặc dù sai hết

Chết lúc nãy đọc nhầm đề nên làm sai sorry