Now let us solve an example, so that you become more confident in the field. In this example I have also tried o show you, how correction for bulking is applied and how correction of any surface moisture is applied.
Relative proportion of cement: sand : coarse aggregate is 1:2:4
Water-cement ratio is 0.6
Moisture content in fine aggregate (i.e. sand) is 6% by volume
Moisture content in coarse aggregate is 1.5% by volume