Answer:
20
Step-by-step explanation:
So origianally, a box of 200 pens gave 2 each to every child. IThat means that there were 100 kids origianally. How? 200/2=100.
If they reduced it by 10, then 100/10=10.
200 / 10 = 20.
So each child would get 20 pens!
For any questions, please say so in the comments :)
Have a blessed day and hope this helped! :D