mensuration

Asked by  | 20th Dec, 2009, 10:53: AM

Expert Answer:

Let the density of the metal be P

Mass = density  volume

For smaller  sphere 1 = p 4/333 =1000 gm 

For smaller  sphere 2 =p 4/3r3 = 7000 gm

1/7 = 33/r

r3 =  73

Let R be the radius of the bigger sphere formed by melting the smaller ones

so 4 /3R3 = 4 /3(33+ 73) 

So R =6

Hence diameter = 12 cm

 

Answered by  | 29th Dec, 2009, 02:17: PM

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