--> //initializations 

--> V=1000//ml (volume in natural state)
 V  = 

   1000.


--> Vmin=840//ml (min volume)
 Vmin  = 

   840.


--> Vmax=1370//ml (max volume)
 Vmax  = 

   1370.


--> M=1//gm (assumed mass of the sample )
 M  = 

   1.


--> //Calculations

--> Dmax=M/Vmin //(max density)
 Dmax  = 

   0.0011905


--> Dmin=M/Vmax //(min density)
 Dmin  = 

   0.0007299


--> Dd=M/V //(dry density)
 Dd  = 

   0.001


--> Dr=(Dmax/Dd)*((Dd-Dmin)/(Dmax-Dmin))*100 //(relative density)
 Dr  = 

   69.811321


--> //results

--> printf('relative density=%f',Dr) //%
relative density=69.811321