(AMS Bumper Sticker)



Web math-frolic.blogspot.com

Friday, December 9, 2011

Another Friday Puzzle

Update: I had quickly adapted the original problem below from another site, only to realize it was far too easy as a problem of 2 equations with 2 unknowns, so have now re-stated it below in at least a slightly more challenging form:

"x" and "y" are two different 2-digit prime numbers composed of the same digits, but in reverse order. If it is true that x - y = 36, then what must the numbers x and y be:
.
. answer below
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
answer:  x=73 and y=37

No comments: