Question

một thùng tôn hình hộp chữ nhật dài 30cm,rộng 15cm.Người ta đổ nước vào thùng sao cho mực nước cao 8cm.Khi thả 1 viên gạch vào trong thùng nước dâng lên cao 11,5 cm.Tính Thể tích của viên gạch.

Làm đầy đủ hộ mình nhé!

 

Answer 1

mực nước lúc sau là: 8+11,5=19,5

thể tích mực nước lúc đầu là: 30.15.8=3600

thể tích mực nước lúc sau là : 30.15.19,5= 8775

thể tích viên gạch là:8775-3600=5175

Answer 2

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