How to calculate number of stalls here I m confused
@hs_yadav you forgot to divide by 100, as it is asked in the question about avg not total nano sec.
I think you need to update your diagram which is given in the comment. First stage should be s1 for 1st instruction, and I2 will be fetched after stage 4 is completed,
Thats why we are getting 3 stalls.