## Troubling Doubling at School

Math brain teasers require computations to solve.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!

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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