170k views
5 votes
250 balls are numbered from 1 to 250 and placed in a box. A ball is picked random. What is a probabilty of picking ball with three- digit number?

1 Answer

2 votes

Answer:

150/250 or 3/5 or a 60% chance

Explanation:

Why?

because you need to calculate the number of balls that are a three-digit number and they will not be a three-digit number up until you get to 100 so what is 250-100? its 150 so your fraction is 150/250 or 3/5 if you need it simplified. To get a percent you need to divide 150 by 250 to get 0.6 and then you multiply by 100.

User Chris Bouchard
by
7.7k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.