Three solid spheres of radius 3 cm 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?1). 122). 143). 164). 28

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1.	Three solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?1). 122). 143). 164). 28
Answer» OPTION 4 : SEEMS CORRECT

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Three solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?1). 122). 143). 164). 28