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'Weekly Problem 7 - 2008' printed from http://nrich.maths.org/

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The information display on a train shows letters by illuminating dots in a rectangular 5 x 8 array. In the letter 't' shown, what fraction of the dots in the array is illuminated?

t

 

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.

 

 

This problem is taken from the UKMT Mathematical Challenges.

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