Challenge 2: The whole deck in pairs
We found that the entire deck of cards got transformed in pairs of red and black.
Why did that happen?
What students worked out2
Student 1
when the special arrangement is made like top half black bottom half red when you cut it you get a stack of red and black the you riffle shuffle it you get it alternate: black,red,black,red,black
Student 3
after making 2 packs…irrespective of pattern adjacent 2 cards will be black and red
pattern could be
BR BR RB RB BR RB RB RB
here 4th card R is mixed between original 3rd and 4th card. so pattern may not be alternate black and red … but two adjacent set of cards remain black and red
if either black or red card gets inserted between first two cards then trick wont work I FEEL as pattern could be
BB RB RB….