Thursday, March 25, 2010

Mathy math math

Today I was asked what 15% of 125 is, and the answer begged the question:

HOW DOES YOUR BRAIN WORK?!

This is what my thought process was (and I said it all out loud):

1) It's 15 + 15% of 25, silly.
2) Probably like 20ish?
3) Wait, it's more like 19.
4) Dang you, infernal math!
5) Well 10% of 25 is 2.5, then 5% is half of that.
6) 2.5+1.25=3.75
7) 3.75+ what did I say? 15. 15 is.... 18.75
8) Yeah, so 18.75. So pretty much 19.

Apparently "pretty much" doesn't work in math.

3 comments:

Britt said...

haha if it's a percentage, i just think tithing.

1) 10% of 125 is 12.50
2) + half of 12.50
3) = 18.75

that's just how my brain works. thanks, church!

Anonymous said...

yeah I just use a calculator! LOL

Brittany Anne said...

I would have done it Britt's way as well. 10% is so easy just move the decimal. Your aroundness makes it too confusing. What was it you told Madi yesterday? "You don't have to be smart if you're cute... I learned that a long time ago." I see ;)