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?
There are 18 students standing in a circle, evenly spaced and consecutively numbered. Which student is directly opposite student 1
4 answers
You can use this circle.
http://www.scriblink.com/index.jsp?act=phome&ld=1&rid=1723&cid=2234
http://www.scriblink.com/index.jsp?act=phome&ld=1&rid=1723&cid=2234
its 10
7