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Actually this is not a word problem but i badly need your help. This is about PHYSICS and the question is :
Derive the following equation in density or archimedes principle
1. Ps= Wa-Pw / Wa-Ww
where the Pw is the density of water equal to 1 g/cc
Ps is the density of irregularly shaped solid
Ww and Wa is the weight
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The formula "1" as it is written in the post, is incorrect.
The correct writing is
Density of object = ,
where is density of fluid,
is weight,
is apparent immersed weight.
See this Wikipedia article and associated links.
Hope this help.