1.

A wooden cube is painted BLUE on all six faces. The side of this cube is 4 cms. It is cut into smaller cubes of side 1 cm. Answer the following questions based on this statement. How many cubes have two faces painted?

Answer»

8
12
16
24

Solution :Remember the formulae to answer these QUESTIONS. X, the side (EDGE) of the large cube is 4 cm, the edge of the small cube x is 1 cm.
NUMBER of cubes having two faces coloured
`=12(X/x-2)=12(4/1-2)=24`.


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