Brain Teaser

"What Is the Connection?"

Give This Brain Teaser One Minute's Effort

In front of you are three circles. In each there are numbers that have a common connection. Discover the connection between the numbers in all three circles and determine the missing number.



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"81" is the correct answer."

The third number (in the bottom of each circle) is half the sum of the two other numbers, plus "4." In order to find the missing number for this brain teaser, do the following:
(66 + 88) ÷ 2 + 4 = 81


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