Pages

Thursday, April 30, 2015

Math class is tough

"Picture this: You're at the supermarket trying to find the best deal on AAA batteries for your flashlight, so you check the price labels beneath each pack. Sounds pretty straightforward, right? But how can you tell which pack is cheaper when one is priced per battery and one is priced per 100?"

-- Consumer Reports, June 2015, calling for government regulation of "unit pricing" labels


6 comments:

  1. Hmmm. Move the decimal point 2 places?

    ReplyDelete
  2. That's an easy one. But how about cases where different brands give
    price per lb, price per oz, price for each, and price for servings?

    ReplyDelete
  3. What if some batteries have different life expectancies?

    ReplyDelete
  4. Ha!!! Good one! I'm embarrassed that I didn't see that one coming. :(

    ReplyDelete
  5. Anonymous 2:32pm: sure. I'm not ragging on unit pricing specifically, just CR's example.

    ReplyDelete
  6. Recreational mathematics and inspirational articles by admission essay writing service

    ReplyDelete