Saturday, October 17, 2009

A Strange Bouquet

All of my flowers except two are roses. All of my flowers except two are tulips. All of my flowers except two are daisies. How many flowers do I have?
(from the World's Best Logic Puzzles book)

Submit your answer on our Family Puzzle Marathon site. Solve three puzzles and get a prize!


Kim said...

You have three. One each of roses, tuips and daisies.

Maria said...

That is absolutely right!

The book that I took this puzzle from also lists a second solution: there are two flowers, neither of which are roses, tulips, or daisies. But I really do not like this second alternative. It takes the fun away from math.

Kim gains her second point, and wait.... she also added a very valuable comment for our previous puzzle (Class assignment). Is she right? What do you think?

Alin Grin said...

I think that ,the class assignment puzzle, hides a "trap" which I fell into and so did the other puzzle solvers. The trap is the assumption that each year's random class assignment is an event which is dependent on the previous year's class assignment.
If each year's class assignment is random (The kid is assigned to a class by a draw) then the probability to be in a class with a specific other kid will be 1:4 no matter how many years you attend school.In other words: It is not as if I was drawn to go to class number 1 last year reduces my chances to draw the same class (number 1) this year.

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