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If a sphere of dia 3 cm is melted and 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?
The answer is 2.87 cm.
Use the formula to find the volume of a sphere:
V= (4/3) * Pi * r^3
Find the volume of a sphere that has a 3 cm radius, then find the volume of a sphere with a 1.5 cm radius. Subtract the volume of the smaller radius from the volume with the larger radius.
The answer will give you the remaining volume of the larger sphere. You can plug it in as V in the formula above, and work backwards until you solve for r. That will give you the answer I arrived at.
NOTE** This is all assuming that ANSHUMAN is right in his/her observation and that you have worded your question incorrectly.
Source(s):Comp Sci/Elec Engineering Student. Have tutored all forms of math up to Calculus 3.
What else can I help you with?
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