## Question

A block of wood floats in water with two-thirds of its volume submerged. In oil the block floats with 0.90 of its volume submerged. Find the density of (a) wood and (b) oil, if density of water is 10^{3} kg/m^{3}.

### Solution

740 kg/m^{3}

In case of floatation

(b) For oil,

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