Question: A program execution time is divided into 32% I/O operations, 24% memory operations, and 44% ALU instructions. A new graphics card reduces the time for

A program execution time is divided into 32% I/O operations, 24%

A program execution time is divided into 32% I/O operations, 24% memory operations, and 44% ALU instructions. A new graphics card reduces the time for the I/O operations from 4 used to 3 psec, and a new cache design improves the time for memory operations by a factor of 4. The new execution time is x% of the old time, what is x? Ansaer 74

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