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maths question
Posted by: Ronaldboll (IP Logged)
Date: April 15, 2015 03:26AM
dogA,dogB just become friends with dogC,and they want to know when dogC hair colour is,dogc gives
them a list of 10 possible colours.

yellow/brown yellow/gray yellow/red
white/orange white/pink
black/green black/gray
blue/green blue/brown blue/orange

dogC then tells dogA and dogB separately the first colour and the second colour of her hair respectively

dogA: I don't know what dogC's colour is,but I know that dogB doesn't know too.

dogB: at first I don't know when dogC's colour is,but I know now

dogA: then I also know when dogC's colour is.

so what is dogC's haircolour?

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