a$)$ Assume the memory system takes $80$ clock cycles of overhead and then delivers $16$ bytes every $2$ clock cycles. So$,$ it can supply $16$ bytes in $82$ clock cycles, $32$ bytes in $84$ clock cycles and so on$.$

What will be the average memory access time for a $64-$byte block if hit time is $12$ clock cycles and the miss rate is $7\mathrm{.}24\%?$

Hint: Equation to use: Average memory access time $=$ Hit time $+$ Miss rate X Miss penalty