Question

the inner dimension of closed wooden cubical box is 10cm,the thickness of wood is 1cm find the volume of wood and cost of painting it at Rs 10

Answer 1

volume of wood=volume of outer cube -volume of inner cube
[side of outer cube=12cm
side of inner cube=10cm]
=12×12×12+10×10×10
=1728+1000
=2728cm
TSAof wood=6×12×12
=864
now should multiply it with 10 to find cost of paiting yourself because you don't mention that Rs10 is cost for cm2 or not