Question:

A match box measures 4cm x 2.5cm x 1.5cm. What will be the volume of a packet containing 12 such boxes?

Given: l = 4cm, b = 2.5cm, h = 1.5cm
V = l × b × h = 4cm × 2.5cm × 1.5cm = 15cm³
Volume of 12 matchboxes = 12 × 15cm³ = 180cm³