5 metal spheres with the radii of 2 m are melted and this melted solution is poured into a box with a base dimension of 3 m x 2 m. find the height of the cube filled with solution.
The total volume of the spheres =
5*(4/3)pi(2)^3 = 160pi/3 m^3
So
160pi/3 = 3 * 2 * h
160pi/3 = 6h divide both sides by 6
160pi/ 18 = h = 80pi/9 m
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+35 
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