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Mathematics 15 Online
OpenStudy (anonymous):

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?

OpenStudy (anonymous):

that's what i was thinking, but not sure if we should subtract 1

OpenStudy (anonymous):

22

OpenStudy (kinggeorge):

\(2\cdot(18-7) = 22\)

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