Dimensions of the matchbox
l = 4cm, b = 2.5cm, h = 1.5cm
We have to find out the volume of a packet containing 12 such boxes
Volume of a cuboid = l×b×h
Volume of the matchbox = 4cm×2.5cm×1.5cm = 15cm³
Now, Volume of 12 such matchboxes will be 12×15cm³ = 180cm³
Therefore, the volume of a packet containing 12 such matchboxes will be 180cm³.