BTS MS
BTS Maintenance des Systèmes (France)
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An automated packaging machine operates for a total production run time of 1,200 hours. During this period, it suffers 6 unexpected breakdowns with repair durations of 2 h, 4 h, 1.5 h, 3 h, 2.5 h, and 5 h. What is the Mean Time Between Failures (MTBF / Moyenne des Temps de Bon Fonctionnement) of this machine?
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