A solid spherical ball of iron with radius 6 cm is melted and recast i – McqOptions

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1.	A solid spherical ball of iron with radius 6 cm is melted and recast in to 3 solid spherical balls. The radii of the two of the balls are 3 cm and 4 cm respectively, then the diameter of the 3rd ball is
A.	10 cm
B.	9 cm
C.	12 cm
D.	9.5 cm
Answer» B. 9 cm

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