Tue March 05, 2013 By:

the external length ,breadth and height of a closed rectangular wooden box are 18cm ,10cm,and 6cm respectively and thickness of wood is 1/2cm.when the box is empty it weighs 15kg and when filled with sand it weighs 100kg.find the weight of the cubic cm of wood and cubic cm of sand

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Tue March 05, 2013
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