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**fred.mathew2613****Member**- Registered: 2013-01-07
- Posts: 1

a cylindrical jar of radius 6cm contains oil.how many iron spheres of radius 1.5cm should be immmersed to raise the level of oil by 2cm?

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,402

Hi fred.mathew2613;

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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