the ratio of the surface area of a cube to cube.whose edge is halved
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let the edge of cube be X
there fore surface area of cube is 6a^2
=6×x^2
=6x^2
edge of another cube is X/2
=6×(x/2)^2
=6(x^2/4)
therefore 6x^2 :6(x^2/4)
and the ans is 4 : 1
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