WASHINGTON, D.C. — Just before National Colorectal Cancer Awareness Month begins in March, a new Physicians Committee for Responsible Medicine/Morning Consult poll found that nearly half of Americans aren’t aware that eating processed meat increases the risk of developing colorectal cancer.
Spoiler
8 Injustices + 1 Chief Injustice = 9 handshakers. Each handshaker shakes 8 people’s excluding themselves, but you musn’t count the same handshake twice for each person.
The first shakes 8 times and is done. The second shakes 7 times because the 8th was already included in the count of the first person…
8+7+6+5+4+3+2+1=36
If you want to make the arithmetic faster for any number, (n+1)*n / 2 is the closed form expression for summing the (whole) numbers 1 to n
So (8+1)*8/2 = 36 in this case
Yes absolutely, but that is only faster when n is large enough to become unwieldy.