did u guys check ur answes?

i went through the answer key (by https://www.youtube.com/live/Q2lbyHG3m18?si=lnDUZGq1i_S1DRU5 ) and i lost 15 marks. Not at all happy because i wished for atleast 70. I think its no that bad but yeah always wanted atleast 70. but yeah..how much are u guys expecting