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A program contains 3 types of instructions - addition, subtraction and division. Addition takes 5 clock cycles, subtraction also takes 8 clock cycles, and division takes 15 clock cycles. In this program, 30\% of the instructions are addition, 25% of the instructions are subtraction, and the rest of the instructions are division. What is the Clocks Per Instruction (CPI)? (3 points) The program above takes 15 seconds to run on a 2.4GHz processor. How many instructions the program has? (4 points)