A cylindrical bucket has a bottom area of 200 square centimeters and a height of 60 centimeters. It is filled with water and poured into a 10 centimeter long cube container, What's the depth of water in centimeters
This type of problem is called variant invariance, which is usually solved by equation
Let the water depth be x cm
10×10×x=200×60
1000x=12000÷1000
x=120
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