Question

solution fast please I have need​

Answer 1

Dimensions of box internally will be ,

Length = 72 -3 = 69 cm

Width = 54 -3 = 51 cm

Height = 48 -3 = 45 cm

Volume of box = 69 × 51 × 45

= 158355 cm^3

= 158.355 litres

Volume of the wood = External volume - Internal volume

= 72 × 54 × 48 - 69 × 51 × 45

= 186624 - 158355

= 28269 cm^3

Mass = 28269 × 0.9 g

= 25442.1 g

= 25.44 kg