Every month we will give you a math/statistics brain teaser that lets you test your knowledge with a fun problem.
This Month's Challenge: In a Circle
A number of children are standing in a circle. They are evenly spaced and the 6th child is directly opposite the 20th child. How many children are there altogether?
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The Answer!
28
The 6th child is directly opposite the 20th child.
Since 20  6 = 14, there are 14 children in half the circle.
(Note that half the circle includes one child out of the 6th child and the 20th child.)
Thus, there are 28 children altogether in the full circle.
Many of the ideas in these Teasers come from thoughts formed by some of the great mathematical/statistical geniuses in history. To learn more about them and to take a fun quiz to find out which famous mathematician through history most interests you, try our Mathematicians' Quiz.
Or if you'd like more Math/Science fun you might want to try...
Now with both 4th and 8th grade level questions!
