A CPU uses two levels of caches L1 and L2. It executes two types of jobs J1 and J2. Their details are as follows: (A) J1 comes with a probability of 0:3 and requires 2000 memory references, all for reading. For J1, there are 100 misses in L1 and 60 ... What is the average memory access time? Please Sir help me with this .. I am really getting confused about how to approach for this question .