Troubling Doubling at School
Read the little poem and answer its question if you can.
The number of girls who do wear a watch
is double the number who don't.
But the number of boys who do not wear a watch
is double the number who do.
If I tell you the number of girls in my class
is double the number of boys,
Can you tell me the number I teach? Here's a clue:
More than 20; below 32!
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