Did you solve it? The multi-choice maths quiz taking over the world

What the source reports
The answer to today’s Kangaroo puzzle Earlier today I set you the following problem from the international maths Kangaroo, a multiple choice challenge taken by more than seven million children every year.
(For more details about this extraordinary event see the original story . ) Here is is again with the solution. 2 3 4 5 6 Continue reading...
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