07/09/23 21:46:41
I am a pen.
>>1
In hall A, 30% of 800 people were men. In hall B, 40% of the 400 people were women and children.
After some of the people in both halls had switched hall, 25% of the people in hall A and 75% of those in hall B were men.
How many people were in hall B after the change?
tuini ending nano?