Answer:
To calculate the number of kilograms that he brought we use the following formula...
KG of cement=number of bags*number of KG that each bag can carry
In this case if mr be brought 80 bags:
KG of cement=80*number of KG that each bag can carry
*We would need to know how many kilograms can a single bag carry, and then multiply that by 80, to know the exact number of KG that he brought.