I'll give you a question, please answer with step-by-step reasoning process.
Chelsea has 24 kilos of sugar. She divides them into 4 bags equally. Then one of the bags gets torn and half of the sugar falls to the ground. How many kilos of sugar remain?

21
Each bag has 24 / 4 = 6 kilos of sugar.

6 / 2 = 3 kilos of sugar falls to the ground.

24 - 3 = 21 kilos of sugar remains.

.

So, the final answer is 21