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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: 91,515

Hi fred.mathew2613;

**In mathematics, you don't understand things. You just get used to them.**

**I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.**

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