a box contains 20 slips of papers, numbered 1-20. 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.

To find the probability that the drawn slip of paper is a positive integer less than 21, we need to determine the total number of possible outcomes and the number of favorable outcomes.

Total number of possible outcomes: Since there are 20 slips of paper, numbered 1-20, the total number of possible outcomes is 20.

Number of favorable outcomes: We want to count the number of positive integers less than 21, which includes numbers from 1 to 20. So, the number of favorable outcomes is also 20.

Probability = Number of favorable outcomes / Total number of possible outcomes
= 20 / 20
= 1

Therefore, the probability that the drawn slip of paper is a positive integer less than 21 is 1 or 100%.

To find the probability that the slip of paper drawn from the box is a positive integer less than 21, we need to determine the total number of possible outcomes and the number of favorable outcomes.

Total Number of Possible Outcomes:
The box contains 20 slips of paper, numbered from 1 to 20. Therefore, the total number of possible outcomes is 20.

Number of Favorable Outcomes:
A positive integer less than 21 includes all the numbers between 1 and 20. In this case, all 20 slips of paper are favorable outcomes.

Now we can calculate the probability using the formula:

Probability (P) = Number of Favorable Outcomes / Total Number of Possible Outcomes

P = 20 (Favorable Outcomes) / 20 (Possible Outcomes)

Simplifying:

P = 1

Therefore, the probability that the slip of paper drawn from the box is a positive integer less than 21 is 1, or 100%.

That probability is 20/20= 1

Answer: 1