A microprocessor has an increment memory direct instruction, which adds 1 to the

A microprocessor has an increment memory direct instruction, which adds 1 to the value in a memory location. The instruction has five stages: fetch opcode (four bus clock cycles), fetch operand address (three cycles), fetch operand (three cycles), add 1 to operand (three cycles), and store operand (three cycles). By what amount (in percent) will the duration of the instruction increase if we have to insert two bus wait states in each memory read and memory write operation?

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