Answer Posted / gowtham1993

(1/(0.2*.1*.1))=500

=500*(.19*.09*.09)=0.76 cum of brick volume

=1-.76 = 0.24 mortor volume
=0.24
so
for 1:4 cement mortor it require 1% cement and 4% sand

0.06 cu.m of sand is required

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