Answer Posted / sri

volume occupied by brick=100x.19x.09x.09=.153cu.m
volume of brick 1x1x.23=.23cu.m

volume of joints=0.23-0.153=0.077cu.m
mortar to fill up frogs=100x.10x.04x.01=.004cu.m
total mortar=.077+.0040=0.081cu.m

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