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!
See TheMathMom presentation:
Popular Puzzles
-
This is an easy puzzle that you all are welcome to share with your kids and friends: Put addition signs between the digits 88888888 to get ...
-
This puzzle arrived via email from one of the fans. Can you move just one match to make this statement correct? There is more than one sol... -
Here is a number magic trick that came to me via mail. All of you, math detectives, are invited to unveil its magic with your logic. Tak... -
This came in a magic trick box that our daughter picked for her birthday. Exhausted from all the Bar Mitzvah preparations for her older b... -
This came from my son who got it from someone else at school. I solved it quickly and texted him the answer just as I was getting into ... -
Magic squares are tables of numbers where sums of every row, every column and both diagonals produce the same number. No, they were not in... -
My daughter's school teacher is showing kids some number mysticism. She told them to take any 3 digit number, e.g.793. Scramble its digi... -
We are done with the winter Olympics and now are looking forward to the Oscar's entertainment. As we saw in the previous puzzle , t... -
I found this puzzle in a tiny but mighty pocket puzzle book named Optical Illusions. Suppose the yellow billiard ball strikes the bumper a... -
You have 42 parrots and 7 cages of various sizes. Lock all the parrots inside the cages so that no cage is empty and each cage contains an ...
3 comments:
You have three. One each of roses, tuips and daisies.
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?
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.
Post a Comment
Note: Only a member of this blog may post a comment.