There are 18 students standing in a circle, evenly spaced and consecutively numbered. Which student is directly opposite student 1

Draw a circle. Then place 18 dots evenly around the edge of the circle. Number these dots.

What do you find? Is there the same number of dots between 1 and the number that you think is opposite -- on both sides of the circle?

You can use this circle.

http://www.scriblink.com/index.jsp?act=phome&ld=1&rid=1723&cid=2234

its 10

7

To determine which student is directly opposite student 1 in a circle with 18 students, we can use a simple formula.

First, we need to find the total number of students in the circle. In this case, it is 18.

Since the students are evenly spaced and consecutively numbered, we can divide the total number of students by 2 and add 1 to find the student directly opposite student 1.

So, the formula to find the student opposite student 1 is (18 ÷ 2) + 1 = 9 + 1 = 10.

Therefore, student number 10 is directly opposite student 1 in the circle.