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Same thing goes for some problems in Chemistry(Difficulty in vizualizing shapes of molecules in 3D,Solid State) and maths(Vector and 3D geometry)..My exams are due next year in April.

Any advice or suggestions to develop this skill will be greatly appreciated.

An example of the problem is-(From Mathematics)

A cube is painted red on all of its sides.It is then broken into 125 small cubes of same size.A cube is picked and is found to have one of its side painted.What is the probability that it will have 2 or more sides painted?..PLease Help