A memory system consists of a cache and a main memory. It takes 15ns to access the cache, and 100ns to access the main memory. This means, per Subject 1 notes, that if the datum is not available in the caches we wasted 15ns, and thus in additional 100ns we access the main memory and obtain the datum. If the effective memory access time is 40% greater than the cache access time, what is the miss ratio M ? Express M as an integer between 0 (inclusive) and 100 (inclusive). Thus if you think the miss ratio is 10% you write 10 , and neither 10% nor 0.1