Help needed related operating systems ! Thanx

5) Consider a memory system with the following parameters: C(c) = .0150 cents / bit T(c) 100 ns T(m) 1200 ns C(m)0015 cents bit where T stands for speed, C for cost, c for cache, and m for memory. a) b) c) What is the cost of 1 MByte of main memory? What is the cost of 1 MByte of main memory using cache memory technology? If the effective access time is 20% greater than the cache access time, what is the hit ratio