Posted by **Elizabeth** on Thursday, April 10, 2008 at 6:23pm.

Suppose students in your school arrive in groups each morning. You are the first to arrive, and you are alone, but still considered a group (consisiting of one person). The second group has two more people than the first group. The third group has two more people than the second group. If 576 students come to school in this day, how many groups arrived at school, assuming they all meet the requirment of having two more members than the group before them?

I could write it out the long way, but can someone show me a short cut, or pattern?

Thanks!

- Algebra 1 -
**tchrwill**, Thursday, April 10, 2008 at 7:14pm
Based on your numerical definition of the groups, the groups are 1-3-5-7-9-11-3-13-15-etc.

The sum of any group of "n" odd numbers starting with 1 is n^2.

Since 576 students arrived at the school, the number of groups must be sqrt(576) = 24.

## Answer this Question

## Related Questions

- Psychology - why is it wrong for a researcher to assign the first subjects to ...
- Algebra - The time a group of high school students arrive home from school each ...
- First Amendment Question - Which would be permitted under the establishment ...
- Algebra - The time a group of high school students arrive home from school each ...
- math logic - A group of five students needs to break into two smaller groups in ...
- math - Anny is having a party .The first guest arrived by himself.3 guests then ...
- math - brett is having a party .first guest arrived by himself,3 guests then ...
- English - 1. A group of students help the sick. 2. A group of students helps the...
- Math Help - Poll of statistic students revealed that 44% study alone, 31% study ...
- 4th grade math - Need help with this problem. Suppose you arrange 48 counters ...

More Related Questions