Answer Posted / shahnawaz

calculation for 1:2:4(M15)
take 50%extra for shrinkage/wastage
1+.5=1.5/1+2+4=.214
now, in 1 bag of cement having qty =.0347cum
so,.214/.0347=6.16 no of bags.
for sand,.214x2=.428 cum
for aggregate,.214x4=.856cum
for cft just x35.31

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