GeekInterview.com
  I am new, Sign me up!
 
GeekInterview.com  >  Placement Papers  >  MindTree  >  Arithmetic
Go To First  |  Previous Question  |  Next Question 
 Arithmetic  |  Question 5 of 10    Print  

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??


  
Total Answers and Comments: 3 Last Update: September 06, 2008   
  
 Sponsored Links

 
 Best Rated Answer
Submitted by: vsg12umt
 
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)

Above answer was rated as good by the following members:
mano.loganathan
November 24, 2005 10:32:25   #1  
ravindra garg Member Since: October 2005   Contribution: 5    

RE: If a sph...

volume 4/3 (22/7) R cube

3 cube 2 cube + 1.5 cube + x cube

x 2.5


 
Is this answer useful? Yes | NoAnswer is useful 0   Answer is not useful 2Overall Rating: -2    
June 28, 2006 04:03:28   #2  
ayush        

RE: If a sph...

You've taken the diameter instead of the radius. The correct ans is 1.25


 
Is this answer useful? Yes | NoAnswer is useful 0   Answer is not useful 2Overall Rating: -2    
September 06, 2008 07:42:29   #3  
vsg12umt Member Since: September 2008   Contribution: 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??
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)

 
Is this answer useful? Yes | NoAnswer is useful 1   Answer is not useful 0Overall Rating: +1    


 
Go To Top


 Sponsored Links

 
About Us -  Privacy Policy -  Terms and Conditions -  Contact -  Ask Question -  Propose Category -  Site Updates 

Copyright © 2005 - 2009 GeekInterview.com. All Rights Reserved

Page copy protected against web site content infringement by Copyscape