Question

A closed wooden box 80cm long, 65cm wide and 45cm high is made of 2.5cm thick wood. Find the capacity of the box and its weight if 100cm ³ of wood weighs 8g

Answer 1

volume of wooden box = length×breadth×height
= 80×65×45 = 234000cm^3
weight of 100cm^3 wooden box = 8 g
weight of 234000cm^3 box = 8/100 ×234000
= 18720g
convert into kg
18.72 kg