Hello, I wanna double check my answer with experts. My answer is 21.3ns Question: Calculate average access time . Three levels of cache is given L1: 2ns, L2:5ns, L3:25ns, Main memory:100ns Hitrate: L1:40%, L2:70%, L3:90%, Main memory:100%

6. Derive the formula for calculating the average access time for a word in a system with three levels of cache. Assume the following values for a theoretical system containing an L1, L2, and L3 cache. If an application has following hit rates, what is the average memory access time for a memory word