posted by tomba .
a block of metal has a length of 20cm, breadth 10cm and height 5cm. its mass is 2.7kg. find the density of the metal in g/cm3. find out what the block is made of.
"shakhenbi" is not a subject, at least not in English.
First compute the density: mass/volume
It will be about 2.7 g/cm^3
There are many materials with that density.
Among metals, one of the most abundant with that density is aluminum.