Thread: Math Puzzles
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Old 07-19-2022, 10:57 AM   #56
psyang
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Join Date: Jan 2010
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Quote:
Originally Posted by Bring_Back_Shantz View Post
I assume you mean "T" in my solution.
As in the starting number of tails in the total group.
But that's not correct, it can definitely be odd.
Look at the extreme example where n = 1 (1 starting tail)

Group 1 will be 1 coin.
Group 2 will be 99 coins.

There are 2 possibilities
1:
Group 1 = 1 tail
Group 2 = 99 heads

Flip over the coin in group 1
Group 1 = 1 head = 0 tails
Group 2 = 99 heads = 0 tails

2:
Group 1 = 1 Head
Group 2 = 1 tail, 98 heads

Flip over the coin in group 1
Group 1 - 1 tail
Group 2 = 1 tail, 98 heads

Works just fine for an odd number.
Ha ha, you are right. I don't know what I was thinking! Well, I do know what I was thinking but it was obviously wrong. Thanks for the correction!
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