haha dun laugh at me ah!
u see ah
parn n bus555, the 2 of them obviously dun shake each other's
hand at the party.
so 24 shakes each.
guest no 24, shakes hand with 25 people, but since shake hand
with the couple liao, 25 minus 2, 23.
guest no 23 then shakes 22 times.
so on and so forth.
den u jus add them together?
lol. That is cute.
Actually there's a way easier method.
24C2:
It's like 24 items and you want to know the number of 2 item
combinations. Take out a scientific calculator, punch 24 nCr
2...
276!
