so the table is saying how each person gets x bottles in one day. for example it says each athlete drinks 4 bottles of water, each coach drinks 3 bottles of water, and each judge drinks 2 bottles of water.
so each athlete drinks 12 bottles total, each coach drinks 9 bottles total, and each judge drinks 6 bottles total in those 3 days. then you multiply those numbers by the total of each.
12×117 = 1404
9×7 = 63
6×4 = 24
1491
Add them and thats how many bottles you will need. since each case holds 24 bottles you dived the total of bottles by 24, round and you get how many cases you need.
