Add it up then you will get answer
Ceiling Function is the least integer that is greater than or equal to x.
<h3>Answer: </h3>
2250 dives
<h3>Explanation</h3>
If each kid dives off the diving board 9 times, for 250 kids, you need to resolve a simple operation:

-14+3/2b-(1+2/8b), then take out the blanket become -14+3/2b-1-2/8b , get 5/4b-15=0 so 5/4b=15 ,get b=15×4÷5. b=12