i cannot understand permutation and combination what to do from where to study some video lectures might help plzz help

try to follow detailed conceptual books with TYPES OF QUESTIONS MENTIONED.

to understand P&C (which is indeed a difficult topic)

firstly state out what you are unab;e to understand!!!

is it simple selection?? or arrangements

or selction and division??

or mixture of themm!!!

you need to practise from a good book to clear your concepts

there are many books available in the market,

dont know about video lectures

i haven''t seen any...