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| Question: If a sphere of diameter 3 cm is melted & formed into 3 spheres, the diameter of 1st is 1.5cm and that of second is 2.0 cm, what is the diameter of the third??
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| September 09, 2008 07:42:29 |
#3 |
| vsg12umt |
Member Since: September 2008 Total Comments: 1 |
RE: If a sphere of diameter 3 cm is melted & formed into 3 spheres, the diameter of 1st is 1.5cm and that of second is 2.0 cm, what is the diameter of the third??
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here volume of Big sphere and volume of all the three small Sphere will be same
let diameter of 3rd small cube be x cm.
so,
4/3*pi*(3/2)cube=4/3*pi*(1.5/2)cube+4/3*pi*(2/2)cube+4/3*pi*(x/2)cube
after calculation
x=cube root of(15.625) |
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