If U can.....answer this

MurAtt

MurAtt

Well-Known Member
#101
#101
Yes that is the only case where A can tell what he has ... ie. B and C having same color.
 
T

trader.trends

Well-Known Member
#102
#102
If A did not tell anything, it implies that, B and C had different colors. Since B could see what C's color was he knew that his own color must be opposite. So if C had yellow, B will shout "Blue" and if C had blue then B would shout, "Yellow". In any case B would wait for A to make a move and if he did not then B knew the color of his own Halo.
 
vssoma

vssoma

Well-Known Member
#103
#103
Question:.....

Four angels sat on the Christmas tree amidst other ornaments. Two had blue halos and two yellow. However, none of them could see above his head. Angel A sat on the top branch and could see the angels B and C, who sat below him. Angel B, could see angel C who sat on the lower branch. And angel D stood at the base of the tree obscured from view by a thicket of branches, so no one could see him and he could not see anyone either.

Which one of them could be the first to guess the color of his halo and speak it out loud for all other angels to hear?
Click to expand...

There are 2 possible solutions:
1. if angels B and C had aureole of the same color, then angel A must have immediately said his own color (other then theirs),
2. if angels B and C had different colors, then angel A must have been silent and that would have been a signal for angel B, who could know (looking at angel C) what his own color is (the other one then C had).
 
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