Question

Calculate the volume of wood of mass 400 kg when the density of wood is 800 kg m^- 3​

Answer 1

Mass = 400 kg

Density = 800 kg/m³

We know

$\sf{\blue{Density = \dfrac{Mass}{Volume}}}$

Or, $\sf{\green{Volume = \dfrac{Mass}{Density}}}$

$\sf{\green{Volume = \dfrac{400}{800}}}$

$\sf{\fbox{\pink{Volume = 0.5 m³}}}$

Answer 2

Given :-

• Mass of wood = 400 Kg

• Density of wood = 800 kg/m³

To Find :-

• Volume of the wood

Solution :-

$\large \red \bigstar \: \boxed{ \green{\bf Density = \frac{Mass}{Volume}}}$

Substitute values in formula

$\: \: \: \: \: \: \: \longmapsto \sf 800 = \frac{400}{V}$

$\: \: \: \: \: \: \: \longmapsto \sf V = \frac{400}{800}$

$\: \: \: \: \: \: \: \longmapsto \ \boxed{\sf V =0.5 \: {m}^{3}}$

$\large \therefore \: \underline{ \bf \pink{ Volume \: of \: wood \: is \: {0.5 \: m}^{3} }}$