Braingle: 'Circle of Children' Brain Teaser

Circle of Children

Math brain teasers require computations to solve.

Fun:	(2.81)
Difficulty:	(1.27)
Category:	Math
Submitted By:	sk8ergrl

A number of children are standing in a circle. They are evenly spaced and the 7th child is directly opposite the 18th child. How many children are there altogether?

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Answer

22; in half of the circle there are 11 children because 18-7=11. Multiply 11x2=22!
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Circle of Children

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Copyright © 1999-2007 | Green | Privacy | Conditions
You are using the TV formatted version of Braingle. For more functionality, please visit the Full Website.