In a 50 cm long and 40 cm wide cuboid glass jar, put a 10 cm long square iron block into it, and the water depth is 20.5 cm?

In a 50 cm long and 40 cm wide cuboid glass jar, put a 10 cm long square iron block into it, and the water depth is 20.5 cm?

∵ in a cuboid glass jar with a length of 50cm and a width of 40cm, put a cube iron block with an edge length of 10cm, ∵ the volume of iron block is: 10 & # 179; = 1000 ∵ at this time, the water depth is 20.5cm. ∵ the volume of iron block and water is 50 * 40 * 20.5 = 41000 cubic cm ∵ the volume of water is 41000-1000 = 40000 cubic cm ∵ the glass jar

Fill a 10 cm square glass container with water to a depth of 5 cm, and then put a 4 cm long, 3 cm wide and 5 cm high iron block into the water. What is the depth of water

（4×3×5+10×10×5）÷（10×10）
=560÷100
=5.6
At this time, the water depth becomes 5.6CM
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A cube glass container is 2 mm in length and 12 cm in depth. Then put a stone into the water. The water depth in the container is 1.5 cm
What's the volume of stone in cubic centimeter

2x2x(1.5-1.2)
=4x0.3
=1.2 (cubic decimeter)
1.2 cubic decimeter = 1200 cubic centimeter