🌷🧚♀️ How many handshakes?
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Because each person shakes hands with the other 8 people, but we counted each handshake twice
no I’m the only one that got it right
#32 says the one that has dumb in their name
No its kelp cheese because lettuce sucks and dolphins don’t speak English, I’m using duolingo
songdamei hat geschrieben:
Because each person shakes hands with the other 8 people, but we counted each handshake twice
Yeah my guy, that's why you have to use the binomial coefficient or you do the following math:
8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 36 = ( 9 * 8 ) / 2
The first person has to shake 8 hands, the next person only has to shake 7 and so on. However, this equals the binomial coefficient. This is basic math.
This is the only correct solution @breezehappysquirrel.
Okay now I feel dum
You don’t have to use fancy terms to get a good solution
Just solve it, the answer is what matters
DumDolphinDoesChess465 hat geschrieben:
Okay now I feel dum
Here is a sketch of the 9 people, every person's handshakes have different colors. As you can see, the last person doesn't have to shake any hands, starting from the red one, who had to shake 9. It's all easier with sketches.
If you count all the handshakes you will notice that the number is 36.
And I drew the purple one to the next one twice so be careful it's 37 in the picture because I doubled one connection.
Really hard to count all those lines though
songdamei hat geschrieben:
Really hard to count all those lines though
I actually made a mistake but now it's corrected, just reload and count from each person's color.
It’s ok, I’m bad at math too buddy
It will be 8+7+6+5+4+3+2+1+0=36
If you think about it, one guy will shake hands 8 times, then the next guy will shake hands 7 more times since has had already shook first guys hand, then third guy will shake hands 6 times using same logic... and so on.
songdamei wrote:
You don’t have to use fancy terms to get a good solution
Those are not fancy terms, in fact they make solutions more efficient. You might think it's easy to calculate the solution for 9 handshakes, but imagine if you have to calculate for 100 people now, obviously you can't just go with brute addition,
I was given blue gift with bow and breakfast and peace award thing from gnchessminator I dont know how this happened
#45 "with each other only once" his explanation makes sense.
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No it’s so easy, it obviously 47