The external dimensions of a closed wooden box are 48 cm, 36 cm, 30 cm

1.	The external dimensions of a closed wooden box are 48 cm, 36 cm, 30 cm. The box is made of 1.5 cm thick wood. How many bricks of size 6 cm × 3 cm×0.75 cm can be put in this box?
Answer» Given, External dimensions of closed wooden box = 48cm × 36cm × 30cm Thickness of wood = 1.5 cm So inner dimensions of box would be = [(48 - 3)×(36 - 3)×(30 - 3)] = 45cm × 33cm × 27cm Volume of box = 45 × 33 × 27 = 38880 cm³ Volume of a brick = 6 × 3 × 0.75 = 13.5 cm³ So, number of bricks can put in box = \(\cfrac{38880}{13.5}\) = 2970

The external dimensions of a closed wooden box are 48 cm, 36 cm, 30 cm. The box is made of 1.5 cm thick wood. How many bricks of size 6 cm × 3 cm×0.75 cm can be put in this box?

Answer»

Given,

External dimensions of closed wooden box = 48cm × 36cm × 30cm

Thickness of wood = 1.5 cm

So inner dimensions of box would be = [(48 - 3)×(36 - 3)×(30 - 3)]

= 45cm × 33cm × 27cm

Volume of box = 45 × 33 × 27 = 38880 cm³

Volume of a brick = 6 × 3 × 0.75 = 13.5 cm³

So, number of bricks can put in box = \(\cfrac{38880}{13.5}\) = 2970