Question:
A water tank is 3 m long, 2 m broad and 1 m deep. How many litres of water can it hold?
Solution:
Length of the water $\operatorname{tank}=3 \mathrm{~m}$
Breadth $=2 \mathrm{~m}$
Height $=1 \mathrm{~m}$
Volume of the water $\operatorname{tank}=3 \times 2 \times 1=6 \mathrm{~m}^{3}$
We $\mathrm{know}$ that $1 \mathrm{~m}^{3}=1000 \mathrm{~L}$
i.e., $6 \mathrm{~m}^{3}=6 \times 1000 \mathrm{~L}=6000 \mathrm{~L}$
$\therefore$ The water tank can hold $6000 \mathrm{~L}$ of water in it.