Task 166
Task 166: test task in emrekuruu/math-openenv, an RL environment on the Hugging Face Hub. $A$, $B$ and $C$ are circular regions as shown. There are 7 items in circle $C$. There are exactly 20 items in $A$ and 10 of those items are not in $B$. How many items are in $B$, but not in $C$? asy…
The task
$A$, $B$ and $C$ are circular regions as shown. There are 7 items in circle $C$. There are exactly 20 items in $A$ and 10 of those items are not in $B$. How many items are in $B$, but not in $C$? [asy] draw(Circle((0,0),50)); label("$A$",(39,39)); draw(Circle((10,-10),32)); label("$B$",(-16,16)); draw(Circle((5,-5),20)); label("$C$",(22,-22)); [/asy]