Circle of ChildrenMath brain teasers require computations to solve.
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?
HintHow many children are in half of the circle?
Answer22; in half of the circle there are 11 children because 18-7=11. Multiply 11x2=22!
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