1 3 6 concrete ratio
Concrete
Proportions by Cement No. of 50 kg Sand to total aggregate
1:3:6 4.0 31
1:4:5 4.0 41
1:3:5 4.4 35
1:4:4 4.5 47
The answer to the problem is 5
120/4=30. Remember its widthxlength. if you forget ask your teacher or look online for more help. Good luck.
