Question

What is the density of 5 litres of water having mass 5 kg?

• A. $100kg/m^3$
• B. $500kg/m^3$
• C. $750kg/m^3$
• D. $1000kg/m^3$

Answer 1

The correct option is D

$1000kg/m^3$

$Density=\frac{Mass}{Volume}$ , where $Mass=5kg$
$Volume=5litres$
$Density=\frac{5}{5\times {10}^{-3}}$ ,where $5litres=5\times {10}^{-3}{m}^3$
=$\frac{1}{1\times {10}^{-}3}$
= ${10}^{-(-3)}kg/m^3$
= $1000kg/m^3$