One of thirty-six poster
Can you find the chosen number from the grid using the clues?
Problem
This poster is based on the problem One of Thirty-six.
The poster is available as a PDF, or the image below can be clicked on to enlarge it.
Image
Student Solutions
Hint | Possible numbers |
The number is odd | 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35 |
The number is a multiple of three | 3,9,15,21,27,33 |
It is smaller than 7x4 (=28) | 3,9,15,21,27 |
The tens digit is even | 21,27 |
It is the greater of the two possibilities | 27 because that is greater than 21 |
So, the answer is 27