Another Egyptian Math Puzzle

Pyramids clip artI have one last puzzle for those of you who are following my Alexandria Jones series on hieroglyphic math and the Egyptian scribe’s method of multiplication by doubling. Here is the “teaser” problem from the cover of the Sept./Oct.1998 issue of my newsletter:

One more Egyptian math puzzle (pdf, 53KB)

My old newsletter contained more than just Egyptian math, of course. One of my favorite features were the occasional story problems sent in by readers. Here is one from the same issue for your puzzling pleasure:

Hi! I own a Horse Ranch. At the beginning of the year, I had 5 stallions and 50 mares, 1/5 of which had foals. Then I went to a horse sale and sold 25 mares, 2 stallions, and 1 foal. But I bought 40 mares, 3 stallions, and 5 foals. How many horses do I have now?

— Horsey-Girl, age 11

Edited to add: The answers to these puzzles (and more) are now posted here.

To Be Continued…

Read all the posts from the September/October 1998 issue of my Mathematical Adventures of Alexandria Jones newsletter.


Don’t miss any of “Let’s Play Math!”:  Subscribe in a reader, or get updates by Email.


Have more fun with Alexandria Jones:

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s