Asked by ladoo
A group of students are standing in a circle. Each student faces someone across the circle. If student 2 faces student 9, how many students are in circle?
Answers
Answered by
MathMate
Draw a diagram with a circle, pencil in students 2 and 9 facing each other.
Doesn't this make student 1 faces student 8?
Whom does Student 7 face?
Doesn't this make student 1 faces student 8?
Whom does Student 7 face?
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