median
don steward
mathematics teaching 10 ~ 16

Saturday, 5 January 2008

tiddlywinks

I am pleased to see that this game survives and has a national website (http://www.etwa.org/) where you can find out about 'squidgers' and 'squopping'

anyway, a tiddlywink question:



a tiddlywink star has played in every international competition so far

if she had scored 7 more cups she would have had an average of 5 cups per match

if she had scored 8 fewer cups she would have had an average of 2 cups per match

what is her current average?

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