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Calculate mark to space ratio if the system is on for 20 sec and off for 3 sec.

Calculate mark to space ratio if the system is on for 20 sec and off for 3 sec. Correct Answer 6.66

Mark to space ratio is Ton÷Toff. It is the ratio of time for which the system is active and the time for which is inactive. M = Ton÷Toff=20÷3=6.66.

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