After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. What is the difference between the ages of the replaced and the new member ?
Your email address will not be published. Required fields are marked *
Comment *
Name *
Email *
Website
Δ
This site uses Akismet to reduce spam. Learn how your comment data is processed.
