To distribute one pack of garbage bags for each flat, we calculate the total number of flats as 2268, since there are 3 blocks, each with 36 floors and 21 flats per floor. Therefore, the correct choice is D. 2268.
;
To determine how many packs of garbage bags should be distributed, we need to calculate the total number of flats in the estate. We start by breaking down the problem step by step:
Determine the total number of floors in the estate : There are 3 blocks with 36 floors each. So, the total number of floors is: 3 × 36 = 108
Calculate the total number of flats in the estate : Each floor has 21 flats, so for 108 floors, the total number of flats is: 108 × 21 = 2 , 268
Therefore, 2,268 flats need one pack of garbage bags each.
Determine how many packs of garbage bags are needed : For each flat that needs one pack, we need a total of: 2 , 268 packs
Therefore, based on the calculation, the correct answer is D. 2268 .