Two cubes have their volumes in the ratio 27 : 64. The ratio

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Two cubes have their volumes in the ratio 27 : 64. The ratio of their surface areas is

Edges of cubes = x andyunits (let)

∴ Ratio of volumes =	x³
	y³

∴	x³	=	27	⇒	x	=	3
	y³		64		y		4

∴ Raito of surface areas =	6x³
	6y³

∴	x²	=		3		²	=	9
	y²			4				16