Question

A $700gm$ solid cube having an edge of length $10cm$ floats in water. How much volume of the cube is outside the water? ${\rho }_w=1000kg/{cm}^3$

• A. $700{cm}^3$
• B. $500{cm}^3$
• C. $300{cm}^3$
• D. none

Answer 1

The correct option is C $300{cm}^3$

$density=mass/volume$

$1=700/v$

$volume=700ml=700{cm}^3$

total volume$=10\times 10\times 10=1000{cm}^3$

volume outside water$=1000-700=300{cm}^3$