Difference between revisions of "KGS math club/solution 11 19"

(Created page with "{{2}, {2,3}, {2,3,4}, {4}}   giving 1152")
 
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
 
{{2}, {2,3}, {2,3,4}, {4}}   giving 1152
 
{{2}, {2,3}, {2,3,4}, {4}}   giving 1152
 +
 +
{{2,3,4}, {3,4}, {4}}   and    {{2}, {4}, {2,4}, {3}, {2,3}}    also work
 +
 +
The trick is that the elements of a set must be distinct.  So { {3,3,3,3,3,3,2} } is not allowed, nor is {{3}, {3}, {3}, {3}, {3}, {3}, {2}}.

Latest revision as of 04:03, 3 July 2012

{{2}, {2,3}, {2,3,4}, {4}}   giving 1152

{{2,3,4}, {3,4}, {4}}   and   {{2}, {4}, {2,4}, {3}, {2,3}}   also work

The trick is that the elements of a set must be distinct. So { {3,3,3,3,3,3,2} } is not allowed, nor is {{3}, {3}, {3}, {3}, {3}, {3}, {2}}.