There are 20 people at this birthday party, where 10 are men, 5 kids and rest women. So, the etiquette here is like follows:
a. when men meet men for the first time, they greet by shaking hands
b. when men meet women for the first time, they greet with a hug.
c. when women meet women for the first time, they too shake hands with each other.
d. Every Adult greet the birthday boy (man) with both shake hands and hugs.
d. kids just say "hi". No shake hands, no hugs.
So, My question is, How many shake hands and hugs were exchanged at that party?