a-) what is the average CPI for machine M1 b-) what is the average MIPS rating for machine M1

[2 parts] Given: Consider two different implementations, M1 and M2, of the same instruction set. There are three classes of instructions (A, B, and C) in the instruction set. M1 has a clock rate of 80 MHz and M2 has a clock rate of 100 MHz. The average number of cycles for each instruction class and their frequencies (for a typical program) are as follows: Machine M1 Machine M2 Instruction Class Frequency Cycles/ Instruction Class Cycles/ Instruction Class 1 2 60% B 2 3 30% 4 4 10%