Posted by Tori on Thursday, January 11, 2007 at 11:43pm.
I am stuck on a couple of math problems. I need help on the following numerical patterns.
5,7,11,17,25,?,47,61
80,40,20,?,5,5/2
It looks like you add two to each increment. For example,
5 + 2 = 7.
7+4=11
11+6=17
17+8=25
25+10=35 etc.
For #2, I think each is halved.
80/2=40
40/2=20
etc.

Math  Anonymous, Thursday, April 10, 2008 at 3:49pm
80 40 20 10 5