Answer:
An instruction is typically executed with the single cycle and the central processing unit (CPU) cycle time take maximum time for completing the longest instruction in the machine.
The instruction cycle is basically the time period in which the single instruction is fetch from the given memory and then it is executed in the machine language when the computer gives an instruction to the computer system.
All the computer instruction contain the similar length of the clock cycle and the pipe-lining is implemented in order to increase the speed of the system. Hence, the different types of instruction require the different number of the cycle.