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A process P1 has a period of 50 and a CPU burst of t1 = 25, P2 has a period of 80 and a CPU burst of 35. The total CPU utilization is?

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A process P1 has a period of 50 and a CPU burst of t1 = 25, P2 has a period of 80 and a CPU burst of 35. The total CPU utilization is?

(a) 0.90

(b) 0.74

(c) 0.94

(d) 0.80

The question was posed to me in an interview for internship.

My question comes from Real Time System topic in chapter Real Time Operating Systems(RTOS) of Operating System

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Best answer
Right choice is (c) 0.94

Easy explanation - None.

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