SOLUTION: There is an even number of math students standing in a perfect circle. They are wearing t-shirts with consecutive numbers starting from 1. The student wearing the t-shirt numbered

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Question 471213: There is an even number of math students standing in a perfect circle. They are wearing t-shirts with consecutive numbers starting from 1. The student wearing the t-shirt numbered 211 is standing directly opposite the student wearing the shirt numbered 407. How many students are standing in the circle?
choose the answer and explain the reason to choose your response
422
814
392
618

Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
There are 392:
407-211=196
196X2=392..