Answer Posted / shaik's construction

For a wall of 10'x10' ( i.e LxH) Having 10mm thicness
mortar ratio 1:6
10' approx equal to 3m
vol of mortar = 3*3*0.01
               =0.09cum
vol of cement = 1*0.09/(1+6)
              =0.01286cum        :-(cement for 1cum=1440kg)
:-amount of cement=0.01286*1440
                  =18.5kg.
amount of sand=18.5*6=111kg

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