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  4. A 700 g solid cube having an edge of length 10 cm floats in water. The volume of cube outside water is :

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Q. A 700 g solid cube having an edge of length 10 cm floats in water. The volume of cube outside water is :

MGIMS WardhaMGIMS Wardha 2006

Solution:

If V be the volume of the cube inside the water then, $ V\times 1000\times 10=0.7\times 10 $ $ V=\frac{7}{10000}=700\,c{{m}^{3}} $ Total volume of the cube $ ={{(10\text{ }cm)}^{3}} $ $ =1000\text{ }c{{m}^{3}} $ Volume outside the water $ =1000-700 $ $ =300\text{ }c{{m}^{3}} $