Posted by Katie on Monday, October 3, 2011 at 9:22pm.
a box contains 20 slips of papers, numbered 120. A slip of paper is drawn from the box and the number is noted. Find the probability that it is a positive integer less than 21.

MATH  Steve, Monday, October 3, 2011 at 10:41pm
That probability is 20/20= 1
Answer: 1