The diagram on the right shows the positions of four people (each marked ) in an Art Gallery. In the middle of the room is a stone column. Ali can see none of the other three people. Bea can see only Caz. Caz can see Bea and Dan. Dan can see only Caz. Who is at position ?
Select one option, then click Submit.
Ali
Bea
Caz
Dan
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Junior Mathematical Challenge 2012 (2012)
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