Maximum life for a certain part is 1100 hours.Recently, 15 of these parts were removed from different aircraft with an average life of 835.3 hours.What percent of the maximum part life has been achieved?
发布于 2021-02-17 16:37:42
【单选题】
A 75.9 percent.
B 76.9 percent.
C 75.0 percent.
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