20 total] Consider two different implementations, P1 and P2, of the same instruction set. There are three types of instructions, A-type, B-type, and C-type. P1 has a clock rate of 2MHz, and P2 has a clock rate of 2.4MHz. The average number of cycles for each type of instruction, as well as their typical frequencies, are given as: Instr. Type P1 Cycles per Instr. Class P2 Cycles per Instr. Class Frequency 50% 30% 20% 4 [10] Calculate the average CPI for each machine, P1 and P2. [10] Using MIPS as a performance metric, which machine is faster, and by how much? (e.g. PX is times faster than PY) a. b