Question

The external dimensions of a closed plastic box are 12 cm × 10 cm × 6 cm. If the thickness of plastic sheet is 1.5 cm, find the capacity of the box.

विकल्प

• 189 cm³

• 198 cm³

• 378 cm³

• 738 cm³

Answer 1

189 cm³

Explanation:

The Capacity of box = Volume of box = lbh

= [12 − 2 (1.5)] [10 − 2 (1.5)] [6 − 2 (1.5)]

= (12 − 3) (10 − 3) (6 − 3)

= 9 × 7 × 3

= 21 × 9

= 189 cm³