Question

a solid cubical block of wood costs rupees 256 at 500 rupees per metre square. find its volume and the length of its side.

Answer 1

Volume can't be m², I'm assuming it as a typo and changed it to m³

Cost of one m³ of cube = Rs 500

Cost of the cube =256 RS

Therefore, volume of the cube = cost of the cube/ cost of 1m³ of cloth

= 256/500m³

= 0.512m³

Now to convert it into cm³ we multiply 1000000 to it.

Thus, 0.512m³ = 0.512 x 1000000 = 512000cm³

So we have the volume as 512000cm³. Thus the length of the side of the cube = ∛512000

= 80cm