A cube of 9 cm egde is immersed completely in a rectangular vessel containing water. If the dimensions of the base are 15 cm and 12 cm, find the rise in water level in the vessel.
Given,
Edge of cube = 9 cm
Dimension of base of rectangular vessel = 15cm×12cm
Volume of cube = 9×9×9 = 729 cm3
Area of base of vessel = 15×12 = 180 cm2
So, rise of water in vessel = 
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