Diffidence Concerning Math Question

<p>I'm fretting because I can't quite remember what a certain math problem on saturday's SAT was asking. The question asked either (and it was very simple) how many two digit numbers have an even ones digit and an odd tens--I thought this is what it asked--or an odd ones and an even tens. Do help.</p>

<p>25 total</p>

<p>i didn't consider 0 as an even number, so i ended up w/ 20. this was the only question that i felt took me for a bit of a fool.</p>

<p>i got 20. anyone elses input?</p>

<p>You've made my day! I was so concerned that I'd made a ridiculous oversight. Out of curiousity, what does it matter if you weren't sure if 0 was even? You must know that 10, 30, 50, 70, and 90 are even.</p>

<p>tens: 13579
ones: 24680</p>

<p>5x5=25</p>

<p>Why isnt it 20? Isnt 0 considered to not be even nor odd? I thought it was a neutral number.</p>

<p>no bc 10 is an even number
and its based on theones digit</p>

<p>0 is an even number.</p>

<p>the definition of an even number is that if divided by two it shouldn't give you a remainder. 0/2 = 0; therefore 0 is an even number.</p>

<p>i got 25 btw</p>

<p>0 is neither positive nor negative, but is considered even.</p>

<p>Yeah, it was 25.</p>