 
 <prompt> ```A case of water get 24 bottles. One children's camp wey get 4 groups buy 13 cases for one 3-day camp. The first group get 14 children, the second group get 16 children, the third group get 12 children, and the fourth group get half of the number of the first three groups combined. If each pikin dey drink 3 bottles per day, how many more bottles of water the camp organizer still need to buy?``` <response>: ```The first three groups get total of 14 + 16 + 12 = 42 pikin.
The fourth group get 42/2 = 21 pikin
All of dem together, the camp get 42 + 21 = 63 pikin.
For one day, the pikin dey drink 3 x 63 = 189 bottles of water.
For 3 days, the pikin go need 189 x 3 = 567 bottles of water.
The person wey organize the camp don already buy 13 x 24 = 312 bottles of water.
The person wey organize the camp go need buy another 567 - 312 = 255 bottles of water.

The final answer: 255.``` 