(AMS Bumper Sticker)



Web math-frolic.blogspot.com

Friday, March 23, 2012

Friday Puzzle

Another Friday puzzle drawn from the volume, "Are You Smart Enough to Work at Google?":

A national survey shows that 70% of the public likes coffee, and 80% likes tea. What then are the upper and lower bounds of people who like BOTH coffee and tea?
.
.Answer below:
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
ANSWER:

upper bound 70%
lower bound 50%

No comments: