A box with lid is made of 2 cm thick wood. Its external length, breadt

1.	A box with lid is made of 2 cm thick wood. Its external length, breadth and height are 25 cm, 18 cm and 15 cm respectively. How much cubic cm of liquid can be places in it > Also, find the volume of the wood used in it.
Answer» Given, External dimensions of box = 25cm × 18cm × 15cm Thickness of wood = 2 cm So, internal dimensions of box = (25 - 4) cm × (18 - 4) cm × (15 - 4) cm = 21cm × 14cm × 11cm Volume of liquid can place in it = 21 × 14 × 11 = 3234 cm³ Volume of wood use in it = external volume – internal volume. = 6750 - 3234 = 3516 cm³

A box with lid is made of 2 cm thick wood. Its external length, breadth and height are 25 cm, 18 cm and 15 cm respectively. How much cubic cm of liquid can be places in it > Also, find the volume of the wood used in it.

Answer»

Given,

External dimensions of box = 25cm × 18cm × 15cm

Thickness of wood = 2 cm

So, internal dimensions of box = (25 - 4) cm × (18 - 4) cm × (15 - 4) cm

= 21cm × 14cm × 11cm

Volume of liquid can place in it = 21 × 14 × 11 = 3234 cm³

Volume of wood use in it = external volume – internal volume.

= 6750 - 3234 = 3516 cm³