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A block of wood has a mass of 25g. When ...

A block of wood has a mass of `25g`. When a `5g` metal piece with a volume of `2cm^(3)` is attached to the bottom of the block, the wood barely floats in water. What is the volume `V` of the wood?

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The correct Answer is:
B, C
Weight=upthrust
`:. (25+5)g=(V+2)rho_(w)g`
Putting `rho_(w)=1g//cm^(3)`
we get, `V=28 cm^(3)`.
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