Today was Otago Problem Solving challenge day
The Otago Problem Challenge is a mathematics problem solving competition aimed at Intermediate School children. It is organised by members of the Department of Mathematics at the University of Otago.
Children participating in the competition attempt to answer five questions in 30 minutes. The questions get harder as you go. Question 1 being the easiest and 5 the hardest.
Here is question 4 from today challenge.
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